A student prepared an 8.00 in stock solution of SrBr2. If they use 125mL of the stock solution to make a new solution with a volume of 246mL, what will the concentration of the new solition be?

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Answer 1

A student prepared an 8.00 in stock solution of SrBr2. If they use 125mL of the stock solution to make a new solution with a volume of 246mL, The concentration of the new solution is approximately 4.07 M.

To find the concentration  of the new solution, we can use the equation:

[tex]C_1V_1 = C_2V_2[/tex]

Where:

[tex]C_1[/tex] = concentration of the stock solution

[tex]V_1[/tex] = volume of the stock solution used

[tex]C_2[/tex] = concentration of the new solution

[tex]V_2[/tex] = volume of the new solution

In this case, the stock solution has a concentration of 8.00 M and a volume of 125 mL. The new solution has a volume of 246 mL. Let's plug in the values:

[tex](8.00 M)(125 mL) = C2(246 mL)[/tex]

Now, we can solve for C2 (the concentration of the new solution):

[tex](8.00 M)(125 mL) / 246 mL = C2[/tex]

[tex]C2 = 4.07 M[/tex]

Therefore, the concentration of the new solution is approximately 4.07 M.

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Related Questions

QUESTIONNAIRE Answer the following: 1. Compute the angle of the surface tension film leaves the glass for a vertical tube immersed in water if the diameter is 0.25 in and the capillary rise is 0.08 inches and o = 0.005 lb/ft. 2. Find the atmospheric pressure in kPa if a mercury barometer reads 742 mm.

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1. The angle of the surface tension film leaving the glass for a vertical tube immersed in water is approximately 20 degrees.

2. The atmospheric pressure in kPa, given a mercury barometer reading of 742 mm, is approximately 98.93 kPa.

1. To calculate the angle, we use the formula θ = 2 × arctan(h/d), where θ is the contact angle, h is the capillary rise, and d is the diameter of the tube. Plugging in the given values, we have θ = 2 × arctan(0.08/0.25). Evaluating this expression, we find θ ≈ 20 degrees.

The concept of surface tension plays a crucial role in various natural phenomena and industrial processes. Understanding how surface tension affects liquids' behavior in confined spaces, such as capillary tubes, helps explain phenomena like capillary action and meniscus formation.

Moreover, this knowledge finds applications in fields like medicine (e.g., in microfluidics) and engineering (e.g., in designing capillary-driven systems). Studying the behavior of fluids at a small scale can lead to innovative technologies and improved understanding of fluid dynamics.

2. To convert the mercury barometer reading from mm to kPa, we use the equation: atmospheric pressure (in kPa) = (barometer reading in mm × density of mercury × acceleration due to gravity) / 1000. Given that the barometer reading is 742 mm and the density of mercury is approximately 13.6 g/cm³, we can calculate the atmospheric pressure as follows:

atmospheric pressure (in kPa) = (742 mm × 13.6 g/cm³ × 9.8 m/s²) / 1000

Converting units, we have:

atmospheric pressure (in kPa) ≈ (742 mm × 1.36 kg/dm³ × 0.0098 m/s²) / 1000

≈ 98.93 kPa

Therefore, the atmospheric pressure is approximately 98.93 kPa.

Barometers are essential instruments for measuring atmospheric pressure, which has significant implications in weather forecasting, aviation, and many other fields. Understanding atmospheric pressure variations helps meteorologists predict weather patterns and study atmospheric disturbances like storms and cyclones.

Additionally, atmospheric pressure influences various natural phenomena and human activities, making it a crucial parameter in scientific research and engineering projects.

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Q: Why we use this numerical number (IV) here for VO2 vanadium (IV) oxide?
is this because vanadium has a positive 4 charge (+4) in here?? If yes, then why we don't say Aluminum (III) oxide for Al2O3? we have possitive 3 charge for Al then why saying Aluminum (III) oxide is wrong?

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Yes, you are correct that we use the numerical number (IV) for VO2 because vanadium has a positive 4 charge (+4) in this case.

This numerical value of 4 indicates the oxidation state of the vanadium ion. Vanadium oxide has a variety of oxidation states, ranging from V2O5, VO2, and VO to V3O7, with vanadium in the oxidation states +5, +4, +3, and +2. The use of these numbers indicates how many electrons an element has gained or lost. For example, when vanadium gains electrons, its oxidation state decreases, while when it loses electrons, its oxidation state increases. When vanadium gains four electrons, it becomes V4+ (i.e. vanadium(IV)), indicating that it has four fewer electrons than a neutral atom of vanadium. Hence, the correct chemical formula of VO2 is vanadium(IV) oxide.

On the other hand, it is not wrong to say aluminum(III) oxide for Al2O3. This is because the oxidation state of aluminum in Al2O3 is indeed +3. The oxidation state of aluminum is determined based on the overall charge of Al2O3, which is zero. Since oxygen has an oxidation state of -2, two oxygen atoms combine to form a total of -4. Therefore, for the overall charge to be zero, the two aluminum atoms in Al2O3 must each have an oxidation state of +3. The chemical formula of Al2O3 is aluminum(III) oxide.Hence, both vanadium(IV) oxide (VO2) and aluminum(III) oxide (Al2O3) are correct ways of naming the chemical compounds.

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The mass and spring constants in a certain mass-spring-dashpot system are know, m = 1 and the damping constant b in not known. It's observed that for a certain solution r(t) of " + bx' + kx=0, x() = 0 and r() = 0, but r(t) >0 for

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For the given mass-spring-dashpot system with initial conditions x(0) = 0 and r(0) = 0, the solution r(t) will be greater than zero if and only if the spring constant k is greater than zero. The value of the damping constant b does not affect whether r(t) is greater than zero or not.

The given differential equation represents a mass-spring-dashpot system, where the mass is denoted by m, the damping constant by b, and the spring constant by k. The equation is given as:

m × r''(t) + b × r'(t) + k × r(t) = 0

In this system, the initial conditions are given as x(0) = 0 and r(0) = 0. It is observed that r(t) > 0 for some values of t.

To determine the conditions for r(t) to be greater than zero, we can consider the solutions to the differential equation. The general solution to this equation can be written as:

[tex]r(t) = e^st[/tex]

where s is a complex number determined by the coefficients of the equation.

Since r(t) > 0 for some values of t, we can conclude that the real part of s must be negative. This is because the exponential term, [tex]e^st[/tex], will only be positive when the real part of s is negative.

Let's consider the given initial conditions:

x(0) = 0 implies r'(0) = 0

r(0) = 0

By substituting these values into the general solution, we get:

r(0) = [tex]e^s[/tex] × 0 = 0

From this, we can conclude that s = 0, since e⁰ = 1. Therefore, the real part of s is zero.

To find the values of b for which r(t) > 0, we need to consider the case where the real part of s is zero. In this case, the differential equation becomes:

m × r''(t) + b × r'(t) + k × r(t) = 0

By substituting r(t) = e⁰t = 1 into the equation, we get:

m × 0 + b × 0 + k × 1 = 0

This simplifies to:

k = 0

Therefore, for r(t) to be greater than zero, the spring constant k must be greater than zero.

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Which of the following measuring devices used to measure liquid level in the tank 2 Select one: a. Displacer devices b. Ultrasonic Level Meter c. Float- actuated devices d. Orifice plates TRUE OR FALSE: In on-off control switching differential is the range of process variable values where the controller tells final control element to open and to shut Select one: O True D O False TRUE OR FALSE: On-off controller used where precise control is not necessary and where the mass of system is small Select one: True False

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The two measuring devices used to measure liquid level in the tank are Displacer devices and Float- actuated devices. The options a and c are the correct answers.

Among the given measuring devices used to measure liquid level in the tank, Displacer devices and Float-actuated devices are the measuring devices used to measure liquid level in the tank. These are given below:

Displacer devices: These devices operate on Archimedes’ principle and are based on the design of a spring with a cylinder attached to its bottom end. These are generally used for level measurement in liquids that are not transparent and whose properties do not allow the use of other types of level indicators.

Float-actuated devices: These devices use the buoyancy principle and have a buoyant element. These are used for level measurement in transparent and opaque liquids where a reasonably accurate measurement of the level is needed. The given statement, "In on-off control switching differential is the range of process variable values where the controller tells final control element to open and to shut" is true. In on-off control switching differential is the range of process variable values where the controller tells final control element to open and to shut.

The statement "On-off controller used where precise control is not necessary and where the mass of system is small" is also true. On-off controller used where precise control is not necessary and where the mass of the system is small.

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Determine the moment of inertia ly (in.4) of the shaded area about the y-axis. Given: x = 4 in. y = 9 in. z = 4 in. Type your answer in two (2) decimal places only without the unit. -3 in.-- X- in.X 2 in. y Z X

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The moment of inertia of the shaded area about the y-axis is [tex]9 in^4[/tex].

To determine the moment of inertia, we need to calculate the integral of the area multiplied by the square of its distance from the y-axis. In this case, we are given the dimensions of the shaded area and the coordinates of its centroid (x, y, z).

First, we need to find the equation that represents the shaded area. From the given information, we can see that the shaded area is a rectangular shape with a length of 2 inches along the y-axis, a width of 4 inches along the x-axis, and a height of 3 inches along the z-axis.

The moment of inertia of a rectangular shape about the y-axis can be calculated using the following formula: [tex]I_y = (b * h^3) / 12[/tex], where b is the base (width) of the rectangle and h is its height.

In this case, b = 4 inches and h = 3 inches. Plugging these values into the formula, we get:


[tex]I_y = (4 * 3^3) / 12 = (4 * 27) / 12 = 108 / 12 = 9[/tex]

So, the moment of inertia of the shaded area about the y-axis is [tex]9 in^4[/tex].

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A mixture of propanone and chloroform boils at a temperature of 64.9∘C with the composition of 70% chloroform. Boiling point of propanone and chloroform are 56.2% and 61.2% respectively. a) Construct the boiling point versus composition diagram for propanone chloroform mixture system. Label all points and curves on the graph. b) Predict the type of deviation occurs in the solution.

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The diagram of the boiling point vs composition of the propanone and chloroform mixture is presented below:Boiling point vs composition of propanone chloroform mixtureFrom the boiling point versus composition graph, it can be noticed that the boiling point of propanone and chloroform mixture is maximum at 50% chloroform content which corresponds to a temperature of around 63°C.

It is also evident that the boiling point of the mixture is higher than both propanone and chloroform which implies that the interaction between the two components is positive. On the other hand, when the measured vapor pressure is greater than the predicted vapor pressure, a positive deviation occurs which suggests that the attractive forces between the molecules of different substances are greater than those between the pure substances.

For the given mixture of propanone and chloroform, a positive deviation is expected since the boiling point of the mixture is greater than both propanone and chloroform.

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What is the length of the unknown leg in a right triangle if √23 yd is the leg A and
√87 yd is the hypotenuse C?

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The length of the base is 8 units if the length of the hypotenuse is √87 yd and the length of the opposite side is √23 yd.

What is a right-angle triangle?

It is a triangle in which one of the angles is 90 degrees and the other two are sharp angles. The sides of a right-angled triangle are known as the hypotenuse, perpendicular, and base.

We have a right-angle triangle in which:

The length of the hypotenuse = √87 ydThe length of the opposite side = √23 yd

According to the Pythagoras theorem:

[tex]\bold{hypotenuse^2 = opposite^2 + base^2}[/tex]

[tex]\sf (\sqrt{87} )^2 = (\sqrt{23} )^2 + \text{base}^2[/tex]

[tex]\text{base} = \sqrt{164}[/tex]

[tex]\text{base}=\bold{8 \ units}[/tex]

Therefore, the length of the base is 8 units if the length of the hypotenuse is √87 yd and the length of the opposite side is √23 yd.

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Donald secured a 4-year car lease at 5.30% compounded annually that required him to make payments of $882.31 at the beginning of each month. Calculate the cost of the car if he made a downpayment of $1,750.

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The cost of the car when he made a down payment is approximately $39,834.35.

To calculate the cost of the car, we need to find the present value of the monthly payments and the down payment.

Step 1: Calculate the present value of the monthly payments:
The lease requires Donald to make payments of $882.31 at the beginning of each month for 4 years. We can use the present value formula to calculate the cost of these payments.

PV = PMT × [(1 - (1 + r)^(-n)) / r]

Where:
PV = Present value
PMT = Payment amount per period
r = Interest rate per period
n = Total number of periods

In this case, PMT = $882.31, r = 5.30% compounded annually (which is equivalent to 5.30%/12 = 0.442% compounded monthly), and n = 4 years × 12 months/year = 48 months.

Substituting these values into the formula, we get:

PV = $882.31 × [(1 - (1 + 0.00442)^(-48)) / 0.00442]

Using a calculator, the present value of the monthly payments is approximately $38,084.35.

Step 2: Add the downpayment:
Donald made a downpayment of $1,750. We need to add this amount to the present value of the monthly payments.

Total cost of the car = Present value of the monthly payments + Downpayment
Total cost of the car = $38,084.35 + $1,750

Calculating this, we find that the cost of the car is approximately $39,834.35.

Therefore, the cost of the car is approximately $39,834.35 when considering the 4-year car lease with 5.30% compounded annually, monthly payments of $882.31, and a downpayment of $1,750.

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Does a reaction occur when aqueous solutions of barium iodide and cobalt(II) sulfate are combined? (a) yes (b) no If a reaction does occur, write the net ionic equation. Use the solubility rules provided in the OWL Preparation Page to determine the solubility of compounds. Be sure to specify states such as (aq) or (s). If a box is not needed leave it blank.

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The given aqueous solutions are cobalt(II) sulfate and barium iodide, and we are to determine if a reaction occurs when they are combined.

Option b is correct.

The balanced equation is: CoSO₄(aq) + BaI₂(aq) → BaSO₄(s) + CoI₂(aq)

There is a reaction that occurs when aqueous solutions of barium iodide and cobalt(II) sulfate are combined. The products formed are solid barium sulfate and cobalt(II) iodide in aqueous solution.

The net ionic equation is: Co²⁺(aq) + 2I⁻(aq) → CoI₂(aq)The sulfate ion doesn't appear in the net ionic equation because it does not participate in the reaction. The barium ion and the sulfate ion will form a precipitate, but they cancel each other out in the net ionic equation.

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2x+4,x2-4 x2-x-6 hcf​

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The highest common factor (HCF) of the given polynomials is (x + 2).

To find the highest common factor (HCF) of the given polynomials, we need to factorize each polynomial and identify the common factors.

Polynomial: 2x + 4

This polynomial can be factored out by taking out the common factor of 2:

2(x + 2)

Polynomial: x^2 - 4

This is a difference of squares, which can be factorized as:

(x + 2)(x - 2)

Polynomial: x^2 - x - 6

To factorize this polynomial, we need to find two numbers that multiply to give -6 and add up to -1 (coefficient of x). The numbers are -3 and 2, so we can rewrite the polynomial as:

(x - 3)(x + 2)

Now, we can compare the factors of the three polynomials to determine the HCF. We identify the common factors by taking the minimum power of each common factor:

Common factors:

(x + 2)

Hence, the highest common factor (HCF) of the given polynomials is (x + 2).

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Complete question:

Find HCF - 2x + 4, x^2 - 4, x^2 - x - 6


Find the slope of every line that is parallel to
the line on the graph
Enter the correct answer.

Answers

Answer:

[tex]m = \frac{2 - 1}{6 - 0} = \frac{1}{6} [/tex]

Martensite is stronger than tempered martensite. Select one

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Martensite is stronger than tempered martensite due to its brittle nature, while tempered martensite offers a combination of strength and toughness, making it suitable for industrial applications.

Martensite is stronger than tempered martensite. This statement is true and the reason behind this is explained below:

Martensite is a phase that is formed by the rapid cooling of austenite. It is a hard and brittle phase, but it possesses high strength and hardness. However, due to its brittle nature, it is not suitable for most industrial applications.Tempered martensite is produced by heating the martensitic phase to an intermediate temperature and then cooling it slowly. This process reduces the brittleness of the martensite and improves its toughness. As a result, tempered martensite possesses lower strength and hardness than martensite but higher toughness. This makes it more suitable for industrial applications where a combination of strength and toughness is required.

In conclusion, martensite is stronger than tempered martensite. However, tempered martensite possesses higher toughness than martensite. Therefore, the choice between martensite and tempered martensite depends on the application and the desired properties.

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Question Rainfall of 2.50m per annum falls on a strip of land 1km wide lying between two parallel canals, one of which (canal A) is 3m higher than the other (canal B). The infiltration rate is 80% of the rainfall and there is no runoff. The aquifer that contains the canals is 10m deep below the level of canal B and both canals fully penetrate it. It is underlain by a horizontal impermeable stratum. Compute the discharge per 'm length into both canals, assuming their boundaries are vertical, and the aquifer coefficient of permeability is 10m/day.

Answers

The discharge per m length into both canals is 2025 m³/year.

Given data

Rainfall = 2.5 m/year

Width of land strip = 1 km = 1000 m

Canal A is 3 m higher than canal B.

Infiltration rate = 80% of the rainfall.

In the given problem, we need to calculate the discharge per m length into both canals.

So,

The discharge = Width of the land strip x infiltration rate x coefficient of permeability

The water that infiltrates through the soil goes down into the aquifer. The canals also get water from the aquifer.

Therefore, the total water flowing into both canals = infiltration into the aquifer + water directly flowing into the canals.

Now, calculating the infiltration,

Infiltration rate = 80% of 2.5 m/year

Infiltration rate = (80/100) x 2.5 m/year

Infiltration rate = 2 m/year

The volume of water infiltrating per year = Infiltration rate x area of land strip= 2 x 1000 m x 1 km= 2 x 1000 x 1000 m³

Total volume of water flowing into both canals = Infiltration + directly flowing water into the canals

The area of cross-section of each canal = 1 m x 10 m = 10 m²

So, the total volume of water flowing into both canals = Total water infiltrated per year+ Total water flowing into canals

= 2 x 1000 x 1000 + (3 - 0.5) x 1000 x 10

= 2 x 10^6 m³ + 25000 m³

= 2025000 m³

Discharge per m length of canal = Total volume of water / Length of the canal

The length of each canal = 1000 m

So, the discharge per m length of canal= 2025000 / 1000= 2025 m³/year

Therefore, the discharge per m length into both canals is 2025 m³/year.

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1. Determine THREE (3) factors influencing the selection of ground improvement techniques. The proposed construction area for the new administration building for the LIMKOKWING University is located on the soft soil which is not suitable to support the structure over them. Ground improvement may be proposed for the safe construction process.
2. Identify the factors that are affecting the soil compaction. In the construction of highway embankments, earth dams, and many other engineering structures, loose soils must be compacted to increase their unit weights. Compaction increases the strength characteristics of soils, which increase the bearing capacity of foundations constructed over them.

Answers

Soil type, pricing, and availability are three factors that can affect your decision when choosing a ground improvement strategy.

What are they?

Soil type: Different ground improvement techniques are available for different types of soils.

The soil conditions on the construction site determine the appropriate technique for ground improvement.

Costs: The choice of ground improvement technique is also influenced by the cost of the technique. A particular ground improvement method may be effective but may be more expensive than another method.

As a result, the costs of different ground improvement techniques must be weighed against their benefits.

Availability: The availability of a specific ground improvement technique is another factor to consider.

Certain techniques may be unavailable due to a lack of technical expertise or appropriate equipment in the region.

2. Factors that affect soil compaction are as follows:

Water content: The degree of compaction is influenced by the water content of the soil.

Moisture helps the particles move closer together, but too much water results in an increase in volume and a decrease in the density of the soil.

The optimum water content for a specific soil type is used to achieve maximum dry density, which is the density of the soil when it has been completely compacted.

Granularity: The soil particle size distribution affects soil compaction. Soils with small grain sizes compact more closely than soils with large grain sizes.

The smaller grain sizes are packed tightly, reducing the air spaces between them, resulting in a denser soil when compacted.

Type of soil: The type of soil is also crucial in determining how well it will compact.

Clay soils are more readily compacted than sandy soils, and silty soils are more readily compacted than sandy soils.

Dense soils necessitate more effort to compact.

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The selection of ground improvement techniques for an administration building on soft soil is influenced by soil type, construction load, cost, and time constraints. Factors affecting soil compaction for structures include moisture content, soil type, and compaction effort, impacting construction outcomes.

1. Factors influencing the selection of ground improvement techniques for the construction of the new administration building for LIMKOKWING University on soft soil:

a. Soil Type and Properties: The characteristics of the soil, such as its composition, strength, and permeability, play a crucial role in determining the appropriate ground improvement technique. For example, if the soil is highly compressible and weak, techniques like deep soil mixing or stone columns may be preferred to increase its load-bearing capacity.

b. Construction Load and Building Design: The anticipated load and design of the administration building are important factors to consider when selecting ground improvement techniques. The weight and type of structure can influence the choice of technique to ensure stability and prevent settlement or uneven settlement.

c. Cost and Time Constraints: The financial and schedule constraints of the project are also factors to consider. Some ground improvement techniques may be more expensive or time-consuming than others. It is important to balance the cost and time requirements with the desired level of improvement.

2. Factors affecting soil compaction for the construction of highway embankments, earth dams, and other engineering structures:

a. Moisture Content: The moisture content of the soil affects its compaction characteristics. Optimum moisture content needs to be achieved to obtain maximum compaction. Too much moisture can result in a saturated soil that is difficult to compact, while too little moisture can lead to inadequate compaction.

b. Soil Type: Different types of soils have varying compaction characteristics. Cohesive soils, such as clay, require more effort to compact compared to granular soils like sand. The particle size distribution and grain shape of the soil also influence its compaction behavior.

c. Compaction Effort: The amount of compaction effort, typically achieved by using heavy machinery like compactors or rollers, is another crucial factor. The compaction effort needs to be sufficient to achieve the desired level of soil compaction and meet the engineering requirements.

It's important to note that these factors are not exhaustive, and there may be additional factors to consider depending on the specific project and site conditions.

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1. What amount is 230% of $450?
2. What amount is 0.04% of $200,000?
3. $135 is what percent of $2,750?
4. $4.55 is what percent of $9,1007
5. What percent of $5,000 is $675?

Answers

To find 230% of $450, you can calculate it as follows:230% = 230/100 = 2.3 (as a decimal)Amount = 2.3 * $450 = $1,035.

2. To find 0.04% of $200,000, you can calculate it as follows:
  0.04% = 0.04/100 = 0.0004 (as a decimal)
  Amount = 0.0004 * $200,000 = $80

3. To find what percent $135 is of $2,750, you can calculate it as follows:
  Percent = ($135 / $2,750) * 100
  Percent ≈ 4.91% (rounded to two decimal places)

4. To find what percent $4.55 is of $9,107, you can calculate it as follows:
  Percent = ($4.55 / $9,107) * 100
  Percent ≈ 0.05% (rounded to two decimal places)

5. To find what percent $675 is of $5,000, you can calculate it as follows:
  Percent = ($675 / $5,000) * 100
  Percent ≈ 13.5% (rounded to one decimal place)

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Learning Goal: To be able to set up and analyze the free-body diagrams and equations of motion for a system of particles. Consider the mass and pulley system shown. Mass m1​=31 kg and mass m2​=11 kg. The angle of the inclined plane is given, and the coefficient of kinetic friction between mass m2​ and the inclined plane is μk​=0.19. Assume the pulleys are massless and frictionless. (Eigure 1) Figure 1 of 1 Part A - Finding the acceleration of the mass on the inclined plane What is the acceleration of mass m2​ on the inclined plane? Take positive acceleration to be up the ramp. Express your answer to three significant figures and include the appropriate units. Part B - Finding the speed of the mass moving up the ramp after a given time If the system is released from rest, what is the speed of mass m2​ after 4 s? Express your answer to three significant figures and include the appropriate units. View Available Hints) If the system is released from rest, what is the speed of mass m2​ after 4 s ? Express your answer to three significant figures and include the appropriate units. Part C - Finding the distance moved by the hanging mass When mass m2​ moves a distance 2m up the ramp, how far downward does mass m1​ move? Express your answer to three significant figures and include the appropriate units.

Answers

Part A - Finding the acceleration of the mass on the inclined plane: Firstly, we need to calculate the force applied by the inclined plane on m2. We know that the weight of m2 is.

W = m2g, and since the plane is inclined, only a component of this weight contributes to the force pushing the mass downwards.  Thus, Fp|| is given by Fp||=m2gsinθ. Since there is kinetic friction between m2 and the plane.

We must also apply friction force on the mass, which is [tex]Ff=μkFp||=μk*m2gsinθ.[/tex]

To find the acceleration of m2, we need to sum the forces on it and then divide by its mass, that is, [tex]m2a=(m2g⋅sinθ)−(μk⋅m2g⋅cosθ)⇒a=g⋅(sinθ−μk⋅cosθ).[/tex]

Now we can substitute the values and find the answer: a=9.8(m/s^2)*(sin(30)-0.19cos(30))=2.93 m/s^2.Part B - Finding the speed of the mass moving up the ramp after a given time:

In this part, we are required to find the final speed of m2 after 4s of motion, when it started from rest.

We can use the equation of motion[tex]s=ut+1/2at^2[/tex] to find the displacement of m2 in these 4s. The initial velocity u is zero since the mass starts from rest.

The acceleration a is the same as we calculated in part A, that is, a=2.93m/s^2. Therefore, the displacement in 4s is s=0+1/2(2.93)(4^2)=23.44 m.

Now we can use the equation v^2=u^2+2as to find the final velocity of m2 after this displacement. The initial velocity u is zero, so [tex]v=sqrt(2as)=sqrt(2*2.93*23.44)=10.68 m/s.[/tex]

Part C - Finding the distance moved by the hanging mass:

In this part, we are asked to find how much distance m1 moves when m2 moves up by 2m.  

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explain briefly and in your own words: what is Cognitive Ergonomics?

Answers

Cognitive ergonomics strives to create systems and environments that support and enhance human cognition, leading to improved efficiency, safety, productivity, and user satisfaction.

Cognitive ergonomics is the study of how individuals interact with technology and how to optimize these interactions to improve user performance, satisfaction, and well-being. This field is concerned with how people process information, make decisions, solve problems, and communicate in the context of technology use.

Cognitive ergonomics examines how users perceive, think, and reason about information, as well as how they feel and behave when using technology. The goal of cognitive ergonomics is to design systems that are easy to use, intuitive, and efficient, while minimizing cognitive workload and errors.

Cognitive ergonomics is a multidisciplinary field that draws on cognitive psychology, human factors engineering, computer science, and other disciplines to address the challenges of designing technology for human use. It involves a deep understanding of human cognition, emotion, perception, and behavior, as well as an appreciation for the context in which technology is used.

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. How many fifths are in 1 1/4? *

Answers

Answer: 1 and 1/5

Step-by-step explanation:

To determine how many fifths are in 1 1/4, we need to convert the mixed number 1 1/4 into an improper fraction. To do this, we multiply the denominator by the whole number and add the numerator, then place that sum over the original denominator.So we get 1 1/4 = (4 x 1 + 1) / 4 = 5/4.

Now, we can divide 5 by 4 to find how many fifths are in 1 1/4. 5 divided by 4 is equal to 1 with a remainder of 1. This means that there is 1 whole fifth in 1 1/4 and one-fifth left over.

Therefore, the answer is 1 and 1/5.

So, there are 1 and 1/5 fifths in 1 1/4.

On March 30, Century Link received an invoice dated March 28 from ACME Manufacturing for 48 televisions at a cost of $125 each. Century received a 9/4/5 chain discount. Shipping terms were FOB shipping point. ACME prepaid the $93 freight. Terms were 2/10 EOM. When Century received the goods, 3 sets were defective. Century retumed these sets to ACME On Aprit 8 , Century sent a $165 partial payment. Century will pay the balance on May 6 . What is Century's final payment on May 6 ? Assume no taxes. (Do not round intermediate calculations. Round your answer to the nearest cent.)

Answers

Century Link’s final payment on May 6th will be $4,908.27.On March 30, CenturyLink received an invoice dated March 28 from ACME Manufacturing for 48 televisions at a cost of $125 each.

Century received a 9/4/5 chain discount. Shipping terms were FOB shipping point. ACME prepaid the $93 freight. Terms were 2/10 EOM.When Century received the goods, three sets were defective. Century returned these sets to ACME. On April 8, Century sent a $165 partial payment. Century will pay the balance on May 6.We have to find the final payment to be made on May 6 Let’s calculate the price first. The cost of each TV is $125 so the cost of 48 televisions would be $125 x 48= $6,000 Now we will calculate the amount of discount that Century Link received.9/4/5 indicates three separate discounts:9% followed by a 4% discount followed by another 5% discount.

To calculate this discount, we can multiply the discounts together to determine the net effect of the discounts on the purchase.

1- [(1 - 0.09)(1 - 0.04)(1 - 0.05)] = 0.8622392

This means that after all discounts, the company was left with a cost of 86.22% of the original cost. The amount paid by the company will be:

0.8622392 x $6,000 = $5,173.435 (This is the amount Century Link paid ACME for televisions)

Century Link returned three sets, and each TV was worth $125, so

$125 x 3 = $375

Century Link sent a partial payment of $165 on April 8, so the remaining amount due is:

$5,173.435 - $165 = $5,008.435

Century Link can get a discount of 2% for paying early (within 10 days) and the final payment is due on May 6th so the discount can be applied 2% of

$5,008.435 = $100.1687(Discount on May 6th payment)

Now subtract the discount from the total amount due:

$5,008.435 - $100.1687 = $4,908.27

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Problem 9-14 Production and Direct Materials Purchases Budgets [LO2] Symphomy Electronics produces wireless speakers for outdoor use on patios, decks, etc. Their most popular model is the All Weather and requires four separate XL12 components per unit. The company is now planning faw material needs for the second quarter. Sales of the All Weather are the highest in the second quarter of each year as customers prepare for the summer season. The carnpany has the following inventory requirements: a. The finlshed goods inventory on hand at the end of each month must be equal to 15.700 units plus 10% of the next month's sales. The finished goods inventory on March 31 is budgeted to be 28,600 units. b. The saw matetials inventory on hand at the end of each month must be equal to 20% of the following month's production needs for raw materials. The raw materials inventory on March 31 for XL 12 is budgeted to be 97,600 components. c. The company maintains no work in process inventories. A soles budget for the All Weather speaker is as follows: Reguired: 1. Prepare a production budget for the All Weather for April, May, June and July. Required: 1. Prepare a production budget for the All Weather for April, May, June and July. 2. Prepare a direct materials purchases budget showing the quantity of XL. 12 components to be purchased for April, May and June and for the quarter in total.

Answers

The problem is asking to prepare a production budget and direct materials purchases budget for Symphony Electronics. Symphony Electronics manufactures wireless speakers, which are ideal for outdoor use on patios, decks, and so on. The All Weather model is their most popular, requiring four different XL12 components per unit.

The company is currently preparing for raw material requirements for the second quarter. The following inventory requirements exist in the company: the finished goods inventory must be equal to 15,700 units plus 10% of the next month's sales, and the raw materials inventory on hand must be equal to 20% of the following month's production needs. Symphony Electronics does not keep work in process inventories. It assists in calculating the quantity of finished goods that the Symphony Electronics company must generate to fulfill the customer demand for the All Weather speaker.

To calculate the quantity of finished goods, use the following formula:

Budgeted sales = Desired ending finished goods inventory + Required beginning finished goods inventory - Actual beginning finished goods inventory

First, calculate the required beginning finished goods inventory:

Required beginning finished goods inventory = Desired ending finished goods inventory of the previous month + 10% of next month's sales

Then calculate the monthly production requirements for each month:

Production = Budgeted sales + Required ending finished goods inventory - Expected beginning finished goods inventory

Finally, the production budget for Symphony Electronics is as follows:

April: 64,500 units

May: 94,000 units

June: 122,500 units

July: 73,400 units

Next, create a direct materials purchases budget, which details the quantity and cost of the raw materials required to complete the budgeted production. This can be calculated using the following formula:

Raw materials required for production = Units of raw materials per unit of production * Budgeted production

The budget for raw materials purchases is then determined using the following formula:

Required raw materials purchases = Raw materials required for production + Desired ending raw materials inventory - Beginning raw materials inventory

The direct materials purchases budget for Symphony Electronics is as follows:

April: 258,000 components

May: 376,000 components

June: 490,000 components

Quarter in total: 1,124,000 components

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<10-Bending Stress Bending Deformation of a Straight Member Learning Goal: To analyze the deformations in a straight rod with a uniform cross-sectional area made out of a homogeneous material that is subjected to an externally applied bending moment. As shown, a cantilevered beam of length L = 5 m is fixed at A. It has a moment of M = 35.0 kNm applied at B and a diameter of d = 600 mm. A 2 of 10 Review M Mastering Engineering Mastering Computer Science: 10-Bending Stress Home Page - Summer 2022 TTU Mechanics of Solids (CE-3303... <10-Bending Stress Bending Deformation of a Straight Member 2 of 10 (> Part B - Normal strain at a point above the neutral axis A small segment of the bearn located a distance along the beam's length and having a thickness A is shown below (in profile view) in the undeformed and deformed positions, respectively. If the radius of curvature As = Ar P kso longitudinal axis longitudinal axis YAS to Ar is p = 3 m, find the normal straine at y = 230 mm above the neutral axis. Express your answer to three significant figures in units of millimeters per millimeter. ► View Available Hint(s) IVE ΑΣΦ | vec 1 ? mm/mm € = Submit Previous Answers KAx- Ar <10-Bending Stress Bending Deformation of a Straight Member Part C-Maximum normal strain The normal strain distribution of an isolated segment of the beam is shown. If c = 300 mm, y = 230 mm, and p = 3 m, what is the maximum normal strain Emax in the beam? -Ar Express your answer in millimeters per millimeters. ► View Available Hint(s) Avec n Emax = mm/mm Submit C 2 of 10 >

Answers

We find that the normal strain at a point 230 mm above the neutral axis is 0.0767 mm/mm and the maximum normal strain in the beam is 0.01 mm/mm.

In order to find the normal strain at a point above the neutral axis, we need to first calculate the radius of curvature (ρ) using the given information.

The radius of curvature is the reciprocal of the curvature (κ), which can be determined using the formula

κ = M / EI

where M is the bending moment, E is the modulus of elasticity, and I is the moment of inertia.

Next, we can find the normal strain (ε) using the formula

ε = y / ρ

where y is the distance above the neutral axis.

Plugging in the values, we have

ε = (230 mm) / (3 m)

ε = 0.0767 mm/mm.

To find the maximum normal strain in the beam, we need to use the given strain distribution diagram.

From the diagram, we can see that the maximum normal strain occurs at the top surface of the beam.

Therefore, the maximum normal strain (Emax) is the strain at the point with the maximum y value.

Plugging in the values from the diagram, we have Emax = 0.01 mm/mm.

To summarize:
- The normal strain at a point 230 mm above the neutral axis is 0.0767 mm/mm.
- The maximum normal strain in the beam is 0.01 mm/mm.

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Suppose we have 24 floors & each floor consists of 4 flats,
2 of them having 3 bedrooms
2 of them having 2 bedrooms.
As a rule of thumb we take 2 persons/bed room.
The daily water requirement is between 50 gal/ day /person (Residential Building),
Solve: The daily water requirement for the whole building

Answers

The total water required for the whole building is:

2 × 96 × 2 × 2 + 3 × 144 × 2 × 2 = 1,152 + 1,728

= 2,880 gallons/day.

Given that there are 24 floors and each floor consists of 4 flats,

2 of which have 3 bedrooms and 2 of which have 2 bedrooms.

Therefore, the total number of flats in the building is 24 × 4 = 96.

Out of these, 2 × 2 × 24 = 96 flats have 2 bedrooms, and

2 × 3 × 24 = 144 flats have 3 bedrooms.

Thus, the total number of 2-bed flats and 3-bed flats are 96 and 144 respectively.

Therefore, the total number of bedrooms in the building is

2 × 96 + 3 × 144 = 576.

Out of these, the number of beds is 2 × 96 × 2 + 3 × 144 × 2 = 864.

Therefore, the total water required for the whole building is:

2 × 96 × 2 × 2 + 3 × 144 × 2 × 2 = 1,152 + 1,728 = 2,880 gallons/day.

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How many nodes are there in the HOMO of the 1,3,5-hexatriene under a normal condition? A) 1 B) 2 C) 3 D) 4 E) 5

Answers

Correct option is C) 3.Under normal conditions, there are three nodes in the HOMO of 1,3,5-hexatriene. HOMO stands for Highest Occupied Molecular Orbital.1,3,5-hexatriene is an organic compound that has six carbon atoms and three double bonds.

The compound has a planar structure. In organic chemistry, molecular orbitals (MOs) are hypothetical wave functions for electrons that extend over the entire molecule. MO theory describes how these orbitals relate to the electronic structure of molecules.MOs of organic molecules are made up of combinations of atomic orbitals (AOs) on individual atoms.

The number of nodes in an MO refers to the number of regions where the probability of finding an electron is zero. For a given molecule, MOs are derived from the AOs of its constituent atoms. The HOMO, being the highest occupied MO, is of particular importance because it determines the reactivity of a molecule.

The HOMO of 1,3,5-hexatriene is the MO with the highest energy that has at least one electron in it. Based on the molecular orbital diagram for 1,3,5-hexatriene, the HOMO has three nodal planes. Therefore, the correct option is C) 3.

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Please help I need the answer asp will give brainlist

Answers

The system of inequality y < 4x - 2 is represented by option B

How to identify inequality graphs

An inequality graph represents the graphical representation of an inequality on a coordinate plane.

It visually represents the set of points that satisfy the given inequality. In the graph, the shaded region indicates the solution set of the inequality.

In the equation we watch out for dotted lines which is used to represent a less than of greater than without "equal to"

The graph is attached

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Menara JLand project is a 30-storey high rise building with its ultra-moden facade with a combination of unique forms of geometrically complex glass facade. This corporate office tower design also incorporate a seven-storey podium which is accessible from the ground level, sixth floor and seventh floor podium at the top level. The proposed building is located at the Johor Bahru city centre. (a) From the above project brief, discuss the main stakeholders that technically and directly will be involved in consulting this project. (b) Interpret the reasons why the contract management need to be efficiently managed and administered throughout the construction process for the project above? (c) (C In your opinion, why different perspectives or views from the stakeholders are important to be coordinated systematically by the project manager during the above mentioned construction project planning stage?

Answers

(a) The main stakeholders involved in consulting the Menara JLand project are the developer, architects, engineers, contractors, regulatory authorities, and the local community.

(b) Efficient contract management is necessary for the Menara JLand project to ensure smooth operations, cost control, quality assurance, and risk mitigation throughout the construction process.

(c) Coordinating different perspectives and views from stakeholders during the construction project planning stage of Menara JLand ensures a comprehensive approach and minimizes conflicts.

(a) The Menara JLand project is a complex undertaking that requires input and collaboration from various parties. The developer holds a significant stake as they initiate and finance the project, while architects and engineers play a crucial role in designing the high-rise building and its unique glass facade.

Contractors are responsible for the construction and implementation of the design, ensuring that it meets the project specifications. Regulatory authorities, such as local government bodies, oversee compliance with building codes, permits, and other regulations. Finally, the local community's involvement is essential as they may be impacted by the project and their opinions should be considered.

(b) Contract management is vital in the construction industry to establish clear expectations, responsibilities, and deliverables for all parties involved. Efficient contract management allows for proper documentation of agreements, specifications, and changes, reducing the likelihood of disputes and conflicts. It helps maintain project timelines, cost control, and quality assurance by ensuring that the work performed aligns with the agreed-upon terms.

Moreover, effective contract management facilitates communication, problem-solving, and compliance with legal and regulatory requirements. By managing contracts efficiently, the project can minimize delays, financial losses, and other potential risks.

(c) In the planning stage, involving various stakeholders and their perspectives is crucial to create a well-rounded project plan. Different stakeholders bring unique insights, expertise, and concerns that can shape the project's direction. By coordinating systematically, the project manager can identify potential risks and opportunities, make informed decisions, and manage conflicts effectively.

Coordinating different perspectives also fosters collaboration, stakeholder engagement, and buy-in, as it shows that their opinions are valued and considered. It helps align objectives, optimize resources, and ensure that the project plan reflects a balanced approach that addresses diverse interests and priorities. Ultimately, systematic coordination of stakeholder perspectives contributes to the overall success of the Menara JLand construction project.

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What is the measurement of each angle?

IF YOU GIVE ME THE RIGHT ANSWER, I WILL GIVE YOU BRAINLEST!!

Answers

The angle measures of the triangle by triangle sum property are 87, 25, and 68.

By the triangle sum property:

(7x-11) + (2x-3) + (5x-2) = 180

combine the like terms:

14x - 16 = 180

add 16 to both sides:

14x = 196

divide 14 into both sides:

x = 14

substitute x for each expression to find the measure of each angle:

7x - 11 = 7(14) -11 = 87

2x - 3 = 2(14) - 3 = 25

5x - 2 = 5(14) - 2 = 68

Thus, the angle measures of the triangle by triangle sum property are 87, 25, and 68.

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Answer:

7x-11=87
5x-2=68
2x-3=25

Step-by-step explanation:

The angles in a triangle all add up to 180.
So henceforth, (7x-11)+(5x-2)+(2x-3)=180
Collect the like terms
14x-16=180
Add 16 on both sides to get x on one side
14x=196
Divide both sides by 14
x=14
-
Now you just substitute x in.
7x-11=87
7*14=98 98-11=87

5x-2=68
5*14=70 70-2=68

2x-3=25
2*14=28 28-3=25
Hope this helps


Calculate the maximum length of a train which could be towed by a 4500 HP locomotive at speed 60 km/hr, if you know that: 180 Tons Weight of locomotive (all wheels driving) Length of locomotive = 20 m Length of each towed wagon = 13 m Weight of each towed wagon = 25 Tons empty and 45 Tons loaded Wind speed = 30 Km/hr Maximum upgrade slope = 9%0 Straight railway (No horizontal curves) For this railway design and provide detailing for a vertical curve which connects +9%o to -8% given that elevation of VPI is 20 m.

Answers

The maximum length of the train that can be towed by a 4500 HP locomotive at a speed of 60 km/hr is approximately 332 meters.

To calculate the maximum length of the train that can be towed by a 4500 HP locomotive, we need to consider several factors such as the power of the locomotive, the weight of the locomotive, the weight of each towed wagon, the wind speed, the maximum upgrade slope, and the design of a vertical curve.

First, let's determine the tractive effort of the locomotive:

Tractive Effort = (4500 HP * 0.7457) / Speed (in mph)

= (4500 * 0.7457) / (60 * 0.6214)

≈ 1122.59 lb

Next, let's calculate the total weight that the locomotive can pull, considering the maximum tractive effort:

Total Weight = Tractive Effort / (1 - (Wind Speed / Speed))

= 1122.59 / (1 - (30 / 60))

≈ 2245.18 lb

Now, let's calculate the maximum number of wagons that can be towed based on the weight of each wagon:

Weight of each loaded wagon = 45 Tons = 90,000 lb

Maximum Number of Wagons = Total Weight / Weight of each loaded wagon

≈ 24.94 wagons

Since we cannot have a fraction of a wagon, the maximum number of wagons that can be towed is 24 wagons.

Finally, let's calculate the maximum length of the train:

Length of locomotive = 20 m

Length of each towed wagon = 13 m

Maximum Length of Train = Length of locomotive + (Length of each towed wagon * Maximum Number of Wagons)

= 20 + (13 * 24)

= 332 meters

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Physical chemistry&thermodynamics
2. For a reaction A → B of order n, show that the half-life time is inversely proportional to [A]."-1. n1

Answers

The half-life time of a reaction A → B of order n is inversely proportional to [A] raised to the power of -1, where n is the order of the reaction.

In a reaction of order n, the rate of reaction is given by the rate equation:

rate =  [tex]k[A]^n[/tex]

where k is the rate constant and [A] is the concentration of A.

The half-life of a reaction is the time it takes for the concentration of A to decrease to half its initial value. Let's denote the initial concentration of A as [A]₀ and the concentration at any time t as [A]t.

Using the rate equation, we can express the rate of reaction as:

rate = -d[A]/dt = [tex]k[A]^n[/tex]

Integrating both sides of the equation with respect to time, we get:

[tex]\int(1/[A]^n) \,d[A] = -\int k \,dt[/tex]

Integrating from [A]₀ to [A]t and from 0 to t, we have:

[tex]\int(1/[A]^n) \,d[A] = -\int k \,dt[/tex]

-ln([A]t/[A]₀)/n = -kt

Simplifying, we get:

ln([A]t/[A]₀) = kt/n

Taking the natural logarithm of both sides:

ln([A]t/[A]₀) = -kt/n

Rearranging the equation, we have:

t = -n/(k ln([A]t/[A]₀))

From this equation, we can see that the half-life time, represented by t, is inversely proportional to [A] raised to the power of -1.

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What is the final temperature (°C) when 15 g of Hg at 22.0°C
receives 43.8 J of heat? (specific heat of Hg = 0.139)

Answers

The final temperature when 15 g of Hg at 22.0 °C receives 43.8 J of heat is 43.39 °C.

Given data:

Mass (m) = 15 g

Specific heat (c) of mercury = 0.139 J g⁻¹ °C⁻¹

Temperature change (ΔT) = ?

Initial temperature (T₁) = 22 °C

Heat received (q) = 43.8 J

Formula to calculate temperature change:

ΔT = q / (mc)

Substitute the given values:

ΔT = 43.8 J / (15 g × 0.139 J g⁻¹ °C⁻¹)

ΔT = 21.39 °C

The final temperature (T₂) can be calculated as:

T₂ = T₁ + ΔT

T₂ = 22 + 21.39

T₂ = 43.39 °C

Therefore, the final temperature when 15 g of Hg at 22.0 °C receives 43.8 J of heat is 43.39 °C.

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The final temperature when 15 g of Hg at 22.0 °C receives 43.8 J of heat is 43.39 °C.

Given data:

Mass (m) = 15 g

Specific heat (c) of mercury = 0.139 J g⁻¹ °C⁻¹

Temperature change (ΔT) = ?

Initial temperature (T₁) = 22 °C

Heat received (q) = 43.8 J

Formula to calculate temperature change:

ΔT = q / (mc)

Substitute the given values:

ΔT = 43.8 J / (15 g × 0.139 J g⁻¹ °C⁻¹)

ΔT = 21.39 °C

The final temperature (T₂) can be calculated as:

T₂ = T₁ + ΔT

T₂ = 22 + 21.39

T₂ = 43.39 °C

Therefore, the final temperature when 15 g of Hg at 22.0 °C receives 43.8 J of heat is 43.39 °C.

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. A function is given by f(x) = 6e-5. Now answer the following:
(a) Approximate the derivative of f(x) at ro= 0.2 with step size h = 0.5 using the central difference method up to 6 significant figures.
(b) Approximate the derivative of f(x) at 20 = 0.2 with step size h = 0.5 using the forward difference method up to 6 significant figures.
(c) Calculate the truncation error of f(x) at x0 = 2 using h= 1, 0.1, 0.01, 0.0001 in the above men- tioned two methods.
(d) Compute Do at o= 0.2 using Richardson extrapolation method up to 6 significant figures and calculate the truncation error.

Answers

Given function is [tex]f(x) = 6e^(-5)[/tex]. Approximating the derivative of f(x) at x=0.2 with step size h = 0.5 using the central difference method up to 6 significant figures:

The formula to calculate the derivative of the function using the central difference method is:

[tex]f'(x) = [f(x+h) - f(x-h)] / 2h[/tex]

When x=0.2, h=0.5, then the formula will be:

[tex]f'(0.2) = [f(0.2+0.5) - f(0.2-0.5)] / 2(0.5)[/tex]

[tex]f'(0.2) = [6e^(-2.5) - 6e^(-7.5)] / 1[/tex]

Approximating the derivative of f(x) at x=0.2 with step size h = 0.5 using the forward difference method up to 6 significant figures:The formula to calculate the derivative of the function using the forward difference method is:

[tex]f'(x) = [f(x+h) - f(x)] / h[/tex]

When x=0.2, h=0.5, then the formula will be:

[tex]f'(0.2) = [f(0.2+0.5) - f(0.2)] / 0.5f'(0.2)[/tex]

=[tex][6e^(-2.5) - 6e^(-5)] / 0.5[/tex]

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None of the above How to cancel Brainly subscription Consider the d-Independent Set problem:Input: an undirected graph G = (V,E) such that every vertex has degree less or equal than d.Output: The largest Independent Set.Describe a polynomial time algorithm Athat approximates the optimal solution by a factor (d). Your mustwrite the explicit value of , which may depend on d. Describe your algorithm in words (no pseudocode) andprove the approximation ratio you are obtaining. Briefly explain why your algorithm runs in polytime. Anna volunteers on the weekend at the Central Library. As a school project, she decides to record how many people visit the library, and where they go. On Saturday, 382 people went to The Youth Wing, 461 people went to Social Issues, and 355 went to Fiction and Literature. On Sunday, the library had 800 total visitors. Based on what Anna had recorded on Saturday, about how many people should be expected to go to The Youth Wing? Round your answer to the nearest whole number. Q2. Write a java program that takes only an integer input between 1 and 26 prints a pyramid of letters as shown below. For example the below pyramid is obtained when the first integer 4 is given as input. D DCD DCBCD DCBABCD The critical angle in air for a particular type of material is 42.0 . What is the speed of light in this material in 10 8m/s ? Use three significant digits please. A student dissolves 40.0mg of lithium phosphate in enough water to make 250.0 mL of solution. What is the concentration of phosphate ions in solution in mEq/L ? When Wharton professor Adam Grant was 26 years old, he was asked to give a course to senior Air Force colonels, many of them at least twice his age. The first course didnt go very well, but he was invited to teach a second time. That time, he opened with this remark: "I know what some of you are thinking right now. What can I possibly learn from a professor whos twelve years old?" The colonels laughed and relaxed, and the second course was highly successful. Dr. Grants acknowledgment of the age differential, seen as a barrier by many of his audience, addressed their concerns and opened their minds to learning.How was Dr. Grant able to use effective communication skills to improve his relationship with his audience?Engaging with the audience in a humorous manner demonstrated to the military leaders that he should not be taken seriously, so they no longer saw him as a threat.Demonstrating understanding and empathy for the audiences concerns allowed for a more positive engagement with the audience.He showed his audience that their rank and experience were not important and that they could all benefit from some humility.Subtly letting his audience know about his accomplishment as being the youngest tenured professor at Wharton caused the audience to defer to his knowledge. 1. Create an array of Apple objects called apples with length 5 in voidmain.Add the below users to the array: An apple with name "Granny Smith" and balance $2.36. An apple with name "Red Delicious" and balance $1.59. An apple with name "Jazz" and balance $0.98. An apple with name "Lady" and balance $1.85. An apple with name "Fuji" and balance $2.23.2. Create a method called indexOfApple which returns the index ofthe first apple in a parameter array that has the same type as atarget Apple object. Return -1 if no apple is found.public static int indexOfApple(Apple[] arr, Apple target)3. Create a method called mostExpensive which returns the type ofthe most expensive apple in a parameter array.public static int mostExpenive(Apple[] arr)4.Create a new method called binarySearchApplePrice which iscapable of searching through an array of Apple objects sorted inascending order by price.5.Create a new method called binarySearchAppleType which iscapable of searching through an array of Apple objects sorted indecending order by type.6.Create a new method called sameApples which returns the numberof Apple objects in a parameter array which have the same type andthe same price. 1. You have bought a $10 ticket in advance for the college soccer game, a ticket that cannot be refunded or resold. You know that going to the soccer game will give you a benefit equal to $20, well above the cost of the ticket.(a) After you have bought the ticket, you hear that there will be a professional baseball post-season game at the same time. Tickets to the baseball game cost $20 and you know that going to the game will give you a beneift of $35. You tell your friends the following: "If I had known about the baseball game before buying the ticket to the soccer game, I would have gone to the baseball game instead. But now that I already have the ticket to the soccer game, it's better for me to just go to the soccer game." Are you making the correct decision? Justify your answer by calculating the benfitis and costs of your decision.(b) Now, suppose that upon further reflection of the company you would keep by attending each event, the benefit to you from going to the soccer game would actually be $45, not $35. Should you reconsider your decision? For the FM signal given by, y(t) = 1000 cos (210t + H cos(2710t)), where the value of H is 2.9 find the peak frequency deviation. Express your answer as a number in kHz. Do not add the units! Which function is graphed ? How does using a table help you find the mean absolute deviation?Answer in complete sentences.