covers and guardrails are required in all of the following areas except: open pits ditches loading docks vats

Answer:fan blades, rotating , abrasive wheel machinery

Explanation:

Answer: drafting blueprints

Explanation:

Answer:

You can see there are four different types of measurement scales (nominal, ordinal, interval and ratio).

Some Important Formulas:

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Answer:

[tex]2.9\times 10^{-6}[/tex]

Explanation:

[tex]Q_s[/tex] = Energy for defect formation = 1.86 eV

T = Temperature = [tex]573^{\circ}\text{C}=573+273.15=846.15\ \text{K}[/tex]

k = Boltzmann constant = [tex]8.62\times 10^{-5}\ \text{eV/K}[/tex]

The fraction of lattice sites that are Schottky defects is given by

[tex]\dfrac{N_s}{N}=e^{-\dfrac{Q_s}{2kt}}\\\Rightarrow \dfrac{N_s}{N}=e^{-\dfrac{1.86}{2\times 8.62\times 10^{-5}\times 846.15}}\\\Rightarrow \dfrac{N_s}{N}=2.9\times 10^{-6}[/tex]

The required ratio is [tex]2.9\times 10^{-6}[/tex].

Answer: capacitance decreases as distance increases

Explanation:  when the plates on the capacitor are being pulled what happens is it will decrease in capacitance so the charge will decrease in the capacitor and because the battery is pulled away and if the plate is fully charged the capacitance as the distance increases between the plates the capacitance drops and heres something else i found on it and the capacitance  

Capacitance C∝d1 when plates of a capacitor are moved farther, the capacitance decreases. After disconnecting the battery, the charge on capacitor remains constant, therefore the energy stored by capacitor U (=2Cq), increases

Answer:

(a) Electrons

Explanation:

When there is a current flow in a transistor of NMOS so it is because of electrons as in NMOS the current is flowing from drain to source. Since the flow of electrons is from source to drain. Also the current would be inverse direction for electrons flow

Therefore the option A is correct

hence, the other options are incorrect

The probability that the wavelengths of the next photosynthetically active radiations is at most 82 nanometer is 0.35.

Photosynthetically active radiation (PAR) is light with wavelengths ranging from 400 to 700 nm that is used by plants for photosynthesis.

The photon flux density of photosynthetic photon flux density (PPFD) is defined as the photon flux density of PAR.

Photosynthesis and plant growth require Photosynthetically Active Radiation. Higher PAR promotes plant growth, and monitoring PAR is critical to ensure plants receive enough light for this process.

Given that,

a = 75

b =95

Using uniform distribution

P(x c) = (c - a) / (b - a)

P(x 82) = (82 - 75) / (95 - 75)=0.35

Probability=0.35

Thus, the probability of the given scenario is 0.35.

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Answer:

d

Explanation:

The average cost of each trip is $8 per trip while the marginal cost is $0

We are given;

Monthly payment by Frank for Membership fees = $80

Number of times frank goes to the center monthly = 10 times

Thus, average cost is;

Average cost = Monthly payment/Number of visits in a month

Average Cost = $80/10

Average Cost = $8 per trip

The marginal cost is the change in total production cost that comes from making or producing one additional unit. However, in this question, his monthly pay covers an unlimited use of its facilities. Thus, there can be no marginal cost for an additional work-out session. Thus;

Marginal Cost = $0

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Answer:

6 amps

Explanation:

current =v÷r

12v÷2 ohms= 6amps

Answer:

13.335 CM (1 ft, 1.335 cm)

I am 80% sure this is the answer, but i am not too keen on math so if i am wrong let me know and i will try my best to fix it!

I hope this helped! Have a good day :]

Answer:

The first one.

Explanation:

The first one without a doubt

this is perfect.........

Answer:

15psig

Explanation:

Answer:

Statement 1: All balls hit the ground at the same time

Explanation:

When there is no resistance of air, the acceleration due to gravity experienced by all the bodies are same. So for falling bodies, neglecting the air resistance, the falling object will be weightless and therefore all the objects will hit the ground at the same time when there is nor air resistance and the objects are considered to be falling in vacuum.

A percentage increase from 80 to 100 is equal to 25%.

A percentage can be defined as any number that is expressed as a fraction of hundred (100). This ultimately implies that, a percentage indicates the hundredth parts of any given number.

In Mathematics, there are two main types of percentage and these include the following:

Mathematically, percentage increase can be calculated by using this formula:

Percentage increase = [Final value - Initial value]/Initial value × 100

Substituting the given parameters into the formula, we have;

Percentage increase = [100 - 80]/80 × 100

Percentage increase = [20]/80 × 100

Percentage increase = 1/4 × 100

Percentage increase = 25%.

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Beginning with model year 2008,  Controller Area Network (CAN) is required for diagnostics.

Diagnostics are defined as the process of identifying an injury, ailment, or disease based on the symptoms and signs a person is exhibiting. In order to confirm or rule out illnesses and diseases, diagnostic tests are utilized. Before creating a treatment plan, your doctor needs particular information from a diagnostic test to make an accurate diagnosis.

The robust automotive bus standard known as a Controller Area Network (CAN) enables microcontrollers and other devices to interact with each other's applications without the need for a host computer. Devices and CAN busses are frequently found in industrial and automotive systems. Bosch created the Controller Area Network (CAN) bus, which saw its debut in manufacturing in 1991.

Thus, beginning with model year 2008,  Controller Area Network (CAN) is required for diagnostics.

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Sarah is on a see saw with her friend. The pivot or fixed point where the bar is free to move is called the  Fulcrum. Hence, option C is correct.

The support or base that a lever rotates on in order to lift or move anything. The verb fulcire, which means "to prop," is the root of the Latin term fulcrum, which means "bedpost."

The term "fulcrum" was first used in the 17th century to describe the pivotal point of a lever or other similar mechanism, such as the oar of a boat.

The Fulcrum line of road bike wheels offers lightweight and durable wheelsets for every circumstance, course, discipline, and price range. From the top-tier full carbon aero wheels to the high performance aluminum line, Fulcrum offers the perfect wheel to match your performance.

Thus, option C is correct.

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Answer:

New reading of water = 81.76 cm² (Approx)

Explanation:

Given:

Pressure difference = 17 cm

θ = 12°

Find:

New reading of water

Computation:

New reading of water = Pressure difference / Sinθ

New reading of water = 17 / sin 12

New reading of water = 81.76 cm² (Approx)

Answer:

Following are the proving to this question:

Explanation:

[tex]\frac{D_1}{D} = \frac{1}{(2f(\frac{l}{D}))^{\frac{1}{4}}}[/tex]

using the energy equation for entry and exit value :

[tex]\to \frac{p_o}{y} +\frac{V^{2}_{o}}{2g}+Z_0 = \frac{p_1}{y} +\frac{V^{2}_{1}}{2g}+Z_1+ f \frac{l}{D}\frac{V^{2}}{2g}[/tex]

where

[tex]\to p_0=p_1=0\\\\\to Z_0=Z_1=H\\\\\to v_0=0\\\\AV =A_1V_1 \\\\\to V=(\frac{D_1}{D})^2 V_1\\\\\to V^2=(\frac{D_1}{D})^4 V^{2}_{1}[/tex]

         [tex]= (\frac{1}{(2f (\frac{l}{D} ))^{\frac{1}{4}}})^4\ V^{2}_{1}\\\\[/tex]

         [tex]= \frac{1}{(2f (\frac{l}{D}) )} \ V^{2}_{1}\\[/tex]

[tex]\to \frac{p_o}{y} +\frac{V^{2}_{o}}{2g}+Z_0 =\frac{p_1}{y} +\frac{V^{2}_{1}}{2g}+Z_1+ f \frac{l}{D}\frac{V^{2}}{2g} \\\\[/tex]

[tex]\to 0+0+Z_0 = 0 +\frac{V^{2}_{1} }{2g} +Z_1+ f \frac{l}{D} \frac{\frac{1}{(2f(\frac{l}{D}))}\ V^{2}_{1}}{2g} \\\\\to Z_0 -Z_1 = +\frac{V^{2}_{1}}{2g} \ (1+f\frac{l}{D}\frac{1}{(2f(\frac{l}{D}) )} ) \\\\\to H= \frac{V^{2}_{1}}{2g} (\frac{3}{2}) \\\\\to \frac{V^{2}_{1}}{2g} = H(\frac{3}{2})[/tex]

L.H.S = R.H.S

Answer:

[tex]250\ \text{lbm/min}[/tex]

[tex]625\ \text{ft/min}[/tex]

Explanation:

[tex]A_1[/tex] = Area of section 1 = [tex]10\ \text{ft}^2[/tex]

[tex]V_1[/tex] = Velocity of water at section 1 = 100 ft/min

[tex]v_1[/tex] = Specific volume at section 1 = [tex]4\ \text{ft}^3/\text{lbm}[/tex]

[tex]\rho[/tex] = Density of fluid = [tex]0.2\ \text{lb/ft}^3[/tex]

[tex]A_2[/tex] = Area of section 2 = [tex]2\ \text{ft}^2[/tex]

Mass flow rate is given by

[tex]m=\rho A_1V_1=\dfrac{A_1V_1}{v_1}\\\Rightarrow m=\dfrac{10\times 100}{4}\\\Rightarrow m=250\ \text{lbm/min}[/tex]

The mass flow rate through the pipe is [tex]250\ \text{lbm/min}[/tex]

As the mass flowing through the pipe is conserved we know that the mass flow rate at section 2 will be the same as section 1

[tex]m=\rho A_2V_2\\\Rightarrow V_2=\dfrac{m}{\rho A_2}\\\Rightarrow V_2=\dfrac{250}{0.2\times 2}\\\Rightarrow V_2=625\ \text{ft/min}[/tex]

The speed at section 2 is [tex]625\ \text{ft/min}[/tex].

(a) The mass flow rate will be "250 lbm/min".

(b) At section 2, the speed will be "625 ft/min".

According to the question,

Section 1 area, A₁ = 10 ft²

Section 2 area, A₂ = 2 ft²

Water's velocity, V₁ = 100 ft/min

Volume at section 1, v₁ = 4 ft³/lbm

(a) We know the formula,

Mass flow rate, m = ρA₁V₁

                              = [tex]\frac{A_1 V_1}{v_1}[/tex]

By substituting the values,

                              = [tex]\frac{10\times 100}{4}[/tex]

                              = [tex]\frac{1000}{4}[/tex]

                              = 250 lbm/min

(2) The speed will be:

→ m = ρA₂V₂

or,

  V₂ = [tex]\frac{m}{\rho A_2}[/tex]

By substituting the values,

       = [tex]\frac{250}{0.2\times 2}[/tex]

       = [tex]\frac{200}{0.4}[/tex]

       = 625 ft/min

Thus the responses above are correct.  

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Answer:

D would be correct because it maximizes it.

Answer:

10 cents/kwh

Explanation:

Base monthly charge = $10.00

First 100 kwh at $0.16/kwh = $16.00

Next 200 kwh at $0.10/kwh = $20.00

Remaining 400 kwh at $0.06/kwh = $24.00

Total charge = $10 + $16 + $20 + $24 /(100+200+400)

Average cost = $70/700 or 10 cents/kwh

Answer: Nuclear to thermal to mechanical to electrical.

Explanation:

Nuclear energy is also referred to as atomic energy which will then lead to the generation of the thermal energy. It should be noted that the thermal energy is also referred to as the heat energy and this is due to the rise in temperature which results in the faster movement of atoms and their collision with one another.

This in turn, brings about the mechanical energy which is simply the energy caused by the motion and this in turn, also lead to electrical energy.

Therefore, the correct answer is Nuclear to thermal to mechanical to electrical.

Answer:

The answer is "Neither".

Explanation:

Engine cranking implies that certain energy is applied to both the starter motor to motivate the engine only with one function: crank the wind-shaft of the engine and create an appropriate compressor in at most one piston for a good activation.

In this question, both Technician was wrong because the pressure motor oil is being used, a motor can crank very slowly or can't start throughout the cold weather.

Answer:

suspended load; bed load

Explanation:

Suspended load is those particles in a river that are transported and float between and around the middle and top of the river, they often change the color of the river through their suspension such as clay.

Bed load is those particles in a river that are transported at the river bed or floor. This is as a result of their weight. Examples are relatively big stones.

Hence, in this case, Clay sized particles in a river are likely to be transported as SUSPENDED LOAD whereas gravel-sized particles are likely to be transported as BED LOAD