A disk-shaped platform has a known rotational inertia. the platform is mounted

Answers

Answer 1

Based on the scenario of things, No additional data are necessary, due to the fact that the rotational inertia of the disk and its initial angular velocity are known.

What is  angular impulse?

The term angular impulse is known to be the output of a torque and the time it took to be equal to the change found in angular momentum of a body that is said to be free to move.

Note that in the above situation, what should be used to determine the angular impulse on the disk is already given and as such, No additional data are necessary, because the rotational inertia of the disk and its initial angular velocity are known.

See full question below

What additional data, if any, should a student collect to determine the angular impulse on the disk?

A

The time interval in which the net torque is applied, because a net torque is not exerted on the disk at a single instant in time.

B

The net torque exerted on the disk, because a net torque is responsible for an angular impulse.

C

The force of friction exerted on the disk, because a force component perpendicular to the line connecting the axis of rotation and the point of application of the force results in a torque about that axis.

D

No additional data are necessary, because the rotational inertia of the disk and its initial angular velocity are known.

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Related Questions

The molar solubility of ________ is not affected by the ph of the solution

Answers

Answer:

carbon I tink but ti may be water

Writing in chronological order means that your writing __________.

Answers

Writing in chronological order means that your writing follows a sequence. :)

What does this dialogue reveal about paul? he does not always keep his word. he is easily intimidated by sutcliffe. he enjoys working with mitchell. he takes his responsibilities seriously.

Answers

What the dialogue reveals about Paul is; He takes his responsibilities seriously.

What is the meaning of the dialogue?

The given excerpt showing the dialogue of Paul is as seen in the brainly link attached.

Now, in the given excerpt we see that Paul regardless of some form of intimidation from Mister Sutcliffe refused to back down from a promise he made to another.

In conclusion, we can say that this attitude or response from Paul shows someone that is highly responsible.

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Which of these states would be the best location for solar panels

Answers

Answer:the answer is the most radiation

Explanation:

Which of these is most likely the responsibility of local government?

Answers

The statement that describe the responsibility of local government is maintaining public works.

What is local government?

Local government refers to the lowest segment of public administration that is within a particular state. This level of government refers to a level of administration within a geographically-localised areas and it has little authority.

It is responsible for responsible for different services for people and businesses.

Therefore, The statement that describe the responsibility of local government is maintaining public works.

The question is incomplete as the options are not given, here are the options from brainly website.

Correcting errors made in supreme Court cases.Developing and amending federal law.Approving state budget.maintaining public works.

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Answer: i

Explanation:

drk

The length of the apothem of the hexagon is about inches. The perimeter of the hexagon is inches. The area of the hexagon is about square inches

Answers

Answer:

The length of the apothem of the hexagon is about

13.9 inches.

The perimeter of the hexagon is

96.0  inches.

The area of the hexagon is about

667.2  square inches.

Explanation:

Answer:

1) 13.0

2) 96.0

3) 667.2

Explanation:

Classify the variable as nominal-level, ordinal-level, interval-level, or ratio level of measurement. leap years: 2008, 2012, 2016,

Answers

Answer: Interval level

Explanation:

Is this statement true or false? with the exception of israel, agriculture in the region remains undeveloped. true false

Answers

Answer:

True

Explanation:

Answer:

true

Explanation:

took the test on k12

Why did the mexican cession result in renewed sectional tension

Answers

✏Answer ✏

The Mexican Cession gave the United States a great deal of land in what is now the southwestern part of the United States. The United States got land in the present-day states of California, Nevada, Wyoming, Utah, Colorado, New Mexico, and Arizona as a result of winning the Mexican-American War.

Explanation:

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Bmx company has one employee. fica social security taxes are 6.2% of the first $137,700 paid to its employee, and fica medicare taxes are 1.45% of gross pay. for bmx, its futa taxes are 0.6% and suta taxes are 5.4% of the first $7,000 paid to its employee.

Answers

The BMX tax for situation A, B and C are respectively calculated as; $282.3, $327.6 and $1600.4.

How to Calculate Social Security taxes?

We are given;

When the FICA Social Security = 6.2% of the first $128,400

Then FICA Medicare = 1.45% of gross pay.

Also, FUTA = 0.6%

Then SUTA = 5.4% of the first $7,000 paid

Now, Gross Pay through August 31 -----Gross Pay for September

A ⇒ $5,100 ⇒ $2,200

B ⇒ 2,300 ⇒ $2,400

C ⇒ 122,700 ⇒ 8,600

In case of A;

FICA is calculated by multiplying the tax rate by the corresponding amount;

FICA social security tax = $2,200 * 0.062 = $136.4

FICA Medicare = $2,200 * 0.0145 = $31.90

FUTA and also SUTA are calculated by multiplying the excess amount by the respective tax rate.

FUTA taxes = ($7,000 - $5,100) * 0.006 = $11.40

SUTA taxes = ($7,000 - $5,100) * 0.054 = $102.60

BMX tax in situation A = $136.4 + $31.90 + $11.40 + $102.60

BMX Tax = $282.3

In case B;

The gross pay is multiplied by the respective tax rate in this situation because the employee has not reached $7,000 in wages.

FICA social security tax = $2,400 * 0.062 = $148.8

FICA Medicare = $2,400 * .0145 = $34.80

FUTA taxes = $2,400 * 0.006 = $14.40

SUTA taxes = $2,400 * 0.054 = $129.6

BMX tax in situation B = $148.8 + $34.80 + $14.40 + $129.6

BMX Tax = $327.6

In case of C;

The maximum amount of wages subject to social security tax is $128,400. Thus;

FICA social security tax = ($128,400 - $122,700) * 0.062 = $353.40

FICA Medicare: $8,600 * 0.0145 = $1247.00

Total taxes for BMX = $353.40 + $1247.00 = $1600.4

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Atlas corp. is considering two mutually exclusive projects. both require an initial investment of $10,000 at t = 0. project s has an expected life of 2 years with after-tax cash inflows of $6,000 and $8,000 at the end of years 1 and 2, respectively. project l has an expected life of 4 years with after-tax cash inflows of $4,373 at the end of each of the next 4 years. each project has a wacc of 9.25%, and project s can be repeated with no changes in its cash flows. the controller prefers project s, but the cfo prefers project l. how much value will the firm gain or lose if project l is selected over project s, i.e., what is the value of npvl - npvs?

Answers

Based on the after-tax cashflows of each project, the value that the firm will gain if Project L is selected over Project S is $56.50.

What are the net present values of Project L and Project S?

Project L net present value:

= Present value of inflows - Outflows

= 4,373/1.10925 + 4,373/1.10925² + 4,373/1.10925 ³ + 4,373/1.10925 ⁴ - 10,000

= 14,089.90 - 10,000

= $4,089.90

Project S net present value:

Because project s can be repeated after it is done, the net present value will be:

= (6,000/1.0925 + 8,000/1.0925² - 10,000) + ((6,000/1.0925 + 8,000/1.0925² - 10,000) / 1.0925²)

= $4,033.40

The difference is:

= Project L - Project S

= $56.50

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Suppose you spin the spinner 5 times. means ""the probability of getting a vowel on exactly 3 of the spins.""

Answers

Answer: A

Explanation: P(3 successes)

The probability of getting a vowel on exactly 3 of the spins when the spinner is spin 5 number of times is 0.1646.

What is binomial probabilities?

The binomial probabilities is the experimental probability in which the total number of output values is 2, therefore it is known as binomial probabilities.

The number of independence variable in case of binomial experiments is fixed. Both the two output has the 1/2 chances to occur.

It can be given by the function,

[tex]P(X)=\left(^nC_x\right)p^x(1-p)^{n-x}[/tex]

Here, (n) is the number of trial (x) is a number of successes desired and (p) is the probability of success in one trial.

The spinner has 3 sections, let A,B and C, in which A one is vowel. Hence, the probability of getting vowel in one spin is,

[tex]p=\dfrac{1}{3}\\p=0.333[/tex]

It spins the spinner 5 times. Thus,

[tex]n=5[/tex]

The probability of of getting a vowel on exactly 3 of the spins is,

[tex]P(X=3)=\left(^5C_3\right)0.333^3(1-0.333)^{5-3}\\P(X=3)=0.1646[/tex]

Thus, the probability of getting a vowel on exactly 3 of the spins when the spinner is spin 5 number of times is 0.1646.

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After the torque has been applied for 0.3 s, what are the magnitude and direction of the angular momentum about the center of the disk?

Answers

The magnitude and direction of the angular momentum about the center of the disk is 0.996 kgm²/s.

Angular acceleration of the disk

The angular acceleration of the disk is determined by applying the principle of conservation of angular momentum as shown below;

Fr = Iα

α = Fr/I

Where;

I is the moment of inertia of the solid disk

I = ¹/₂MR²

I = ¹/₂ x (0.5) x (0.08)²

I = 1.6 x 10⁻³ kgm²

[tex]\alpha = \frac{14 \times 0.22}{1.6\times 10^{-3}}\\\\\alpha = 1,925 \ rad/s^2[/tex]

Final angular velocity of the disk

ωf = ωi + αt

ωf = 45 + (1925 x 0.3)

ωf = 622.5 rad/s

Angular momentum

L = Iω

L = (1.6 x 10⁻³) x (622.5)

L = 0.996 kgm²/s

Thus, the magnitude and direction of the angular momentum about the center of the disk is 0.996 kgm²/s.

The complete question is below:

A uniform solid disk with radius 8 cm has mass 0.5 kg (moment of inertia I = (1/2)MR²). A constant force 14 N is applied as shown. At the instant shown, the amount of string that has wound off the disk is d = 22 cm, and the angular velocity of the disk is 45 radians/s into the page.

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Cooper and his children went into a bakery and where they sell cupcakes for $2.50 each and donuts for $1.50 each. cooper has $40 to spend and must buy a minimum of 18 cupcakes and donuts altogether. if cooper decided to buy 7 cupcakes, determine the maximum number of donuts that he could buy. if there are no possible solutions, submit an empty answer.

Answers

Answer: He can buy a maximum of 15 donuts

Explanation: If he bought 7 cupcakes costin $2.50 each then you would multiply 2.50 by 7 which would give you $17.50

then you subtract 17.50 from 40 which gives $22.50 left to use for donuts

then you know you need to have a minimum 18 cupcakes and donuts together so we multiply 1.50 x 11 for the remaining 11 donuts you need and that leaves you with six dollars then if you multiply 1.50 x 4 it gives you the remaining 6 dollars you need so the max number of donuts you may buy is 15

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How did this structure combine both greek and roman architectural elements?

Answers

Answer:

The Hagia Sophia combines both Greek and Roman architectural elements. Some examples of this are the famous dome on this beautiful building was like that of the Ottoman Turks of the Roman Empire. It seems to have three or four large pillars which are made of marble which is like in Athens, Greece.

The average height of a sunflowers in a field is 64 inches

Answers

Incorrect. Sunflowers grow up to 6-10 feet on average, making it taller than 64 inches.

Lesson 2 skills practice geometric proof answer key

Answers

Answer:

huh

Explanation:

The manufacturer of a smart watch claims that individuals who pay attention to how many steps they take per day will inadvertently take more steps per day than individuals who pay no attention to how many steps they take per day. to investigate this claim, the manufacturer conducts a study to estimate the difference in the mean number of steps taken by those that pay attention to how many steps they take per day and those that do not. to do so, 40 volunteers are recruited. half of the volunteers are randomly assigned to receive a smart watch and are taught how to use it to track their steps. the other half of the volunteers are given a wristband to wear, but are not informed that the wristband is tracking their steps. the volunteers are monitored for 30 days. the mean and standard deviation of the number of steps taken per day are computed for each group. here are the data:

Answers

The confidence interval for the difference in the mean number of steps is; 1596 ± 2.861√[(1580²/20) + (2350²/20)]

What is the confidence Interval?

The given data is;

                                          n                      x⁻                   Sₓ

Pay attention                    20                 10,244            1,580

Do not pay attention        20                 8.,648            2,350

We are given;

Significance level; α = 0.1

Using Excel with the function, we have: TINV(0.01,19);

Critical value is; t = 2.861

The margin of error can now be represented by the illustration:

Margin of error = t√[(s₁²/n₁) + (s₂²/n₂)]

Thus, the confidence interval for the difference in the mean number of steps taken by all people like these that do and do not pay attention to the number of steps they take per day using df - 19 is:

1596 ± 2.861√[(1580²/20) + (2350²/20)]

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Describe in detail the most memorable visual aid you've ever seen used in a presentation. why does it stick out in your memory? how was it used to illustrate a point? what did you learn from this experience? << read less

Answers

Answer:

The most memorable visual aid I have seen used was when a psychology professor used graphic descriptions (through historically important paintings) to illustrate abstract concepts, such as love, madness, and despair.

The representations used in the presentation stuck in my mind because of the visual impact that correlated with my personal experiences, making them vivid and memorable in my mind.

The points illustrated aimed at demonstrating the universality of human passions, and as such, it was an extremely successful presentation.

Finally, what I learned from this experience is that human emotions are not only universal, and as such, they can be represented, but, also, and most importantly, they are emotions that are not abstract concepts, rather, singular and personal experiences to which, paradoxically, everyone is subjected.

Explanation:

The most striking visual assistance I have ever witnessed came when a sociology professor illustrated abstract thoughts like affection, lunacy, and despair with a pictorial description of famous paintings from the past.

What is the presentation?

An audience gathers inputs from either a speaker through a presentation. The typical purpose of a presentation is to enlighten, convince, inspire, educate, build sympathy, or offer a new product or service. Presentations can also include speeches, introductions, lectures, or demonstrations.

The visual effect that connected with my life observations helped the presentation's depictions stick in my consciousness, keeping them distinct and unforgettable.

The discussion was really quite effective since it served to highlight the concept that human passions are shared by all people.

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18. refers a story or an account of something, dealing with sequences of events an experiences, though not necessarily in strict order.
A. Plot C. characters B. Narrative D. point of view

19. Which does not belong to the group?
A, novel C. short stories B. parables D. editorial text

20. It is a narrative that consist of people, events, or imaginary places that are not based on the facts of his
A. fictional narrative C. setting B. non-fictional Narrative D. theme

21. The element of the narrative that states when and where the story happens.
A. characters C. theme B. dialogue D. setting


22. Hero and villains are the in the narrative. A. characters C. plot B. theme D. title

23. is the sequence of events that occur or makes up a story?
A. theme C. plot B. exposition D. climax

24. What is a theme? A. It is the central message of the story. B. It is the protagonist and antagonist in the story. C. It is the thread of events. D. It is the where and when the story happens.

25. The following elements may lead us to find the theme of the narrative except one, which is it? A. Title B. dialogue C. Characters D. climax only 2​

Answers

18.) narrative

19.) editorial text​

20.) fiction

21.) setting

22.) characters

23.) it is the central message of the story

25.) dialogue

In 2017 the hindu festival of diwali occurred on thursday, 19 october. what fraction of the year was this? (to 1 decimal place). hint: think carefully which start and end dates to use.

Answers

The fraction of the year that passed before the festival starts is 292/365 = 0.8.

Which fraction of the year represents this?

Well, we know that a year has 365 days on it.

Now we need to find how many days are between the start of the year and 19 of October.

January has 31 days.February has 28 daysMarch has 31 daysApril has 30 daysMay has 31 daysJune has 30 days.July has 31 days.August has 31 daysSeptember has 30 days.October has 19 (in this case).

Adding all of these we get:

31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 19 = 292

So, the fraction of the year that passed before the festival starts is:

F  = 292/365 = 0.8

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Show that if there are 30 students in a class, then at least two have last names that begin with the same letter.

Answers

using Pigeonhole Principle we have ceiling (30/26) = 2.

How did otto i gain support from many church bishops?

Answers

The way that Otto I gained support from many church bishops is; By using the power of lay investiture.

What is Lay Investiture?

Lay Investiture is defined as the system or process whereby the religious leaders are elected and given appointment by the rulers or monarchs of secular states or kingdoms.

Otto I was the ruler of Germany and the Roman empire after the death of his father Henry I. Thus, he took responsibility for installation of the leadership of the local church.

Due to the fact that the installation was supposed to be the rights and duty of the church in appointing the local leaders, Otto's act led to an increase in his loyal followers and this practice of investiture gained a large number of support from many Bishops.

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If the anode compartment contains [so42−]= 1.30 m in equilibrium with pbso4(s), what is the ksp of pbso4?

Answers

The Solubility product constant (Ksp) for for the dissociation of PbSO₄ given by [Pb²⁺][SO₄²⁻].

What is solubility constant?

Solubility product constant (Ksp)​ refers to the equilibrium constant that describes a solid substance (solute) being dissolved in an aqueous solution.

The properly balanced chemical equation for the dissociation of PbSO₄ is given by:

                         PbSO₄(s) ⇆  Pb²⁺(aq) + SO₄²⁻(aq)

Thus, the Ksp for the above chemical reaction is given by:

Ksp = [Pb²⁺][SO₄²⁻]

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Fill in the blank with the spanish word or phrase that best completes the following sentence._______________. necesito una cita con el doctor.enfermarsela pacienteme muevome siento mal

Answers

The complete sentence is: Me siento mal. Necesito una cita con el doctor.

What is the explanation for the above response?

The response provided is a complete sentence in Spanish, which translates to "I feel bad. I need an appointment with the doctor." The sentence is a clear expression of the speaker's current state of health and their need for medical attention.

The sentence structure is simple and direct, using the verb "necesitar" (to need) to express the speaker's desire for an appointment with the doctor. The context implies that the speaker may be experiencing physical discomfort or illness and is seeking treatment or advice from a medical professional.

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A lakota folk tale that encourages youth to emulate an important elder

Answers

The passage is most likely excerpted from A lakota folk tale that encourages youth to emulate an important elder.

What are folk tales?

Folk tales are stories that are orally passed down traditionally from one generation to another. It includes fairy tales, fables, and trickster tales.

The importance of folk tales include to help children:

develop strong reading skills,

study other culture,

model positive character traits, and

discover a love of stories.

The Lakota folk tale according to the passage which encourages the youth to emulate an important elder is inculcating a positive character traits in the youths.

Therefore, the passage is most likely excerpted from A lakota folk tale that encourages youth to emulate an important elder.

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Each person in a group of students was identified by year and asked when he or she preferred taking classes

Answers

Answer:

by the year he or she wanted

3. he took the bad news with surprising and showed no emotion.

Answers

Explanation:

I don't know what the answer choices are

Solar cells convert this type of energy directly into electrical energy.

Answers

Answer:

Sunlight :)

Explanation:

A PV cell, (solar cell) directly converts sunlight into electricity.

The quotient of and a number n results in. What is the value of n?

Answers

The quotient of a number 8.4x10⁹ and a number n results in 5.6 x 10^27, with the value of n is 1.5×10⁻¹⁸.

What is the quotient of a number?

Quotient is the resultant number which is obtained by dividing a number with another. Let a number a is divided by number b. Then the quotient of these two number will be,

[tex]q=\dfrac{a}{b}[/tex]

Here, (a, b) are the real numbers.

The two number given in the problem are, 8.4x10⁹ and n. The quotient when first number is divided with second is  5.6 x 10^27. Thus,

[tex]\dfrac{8.6\times10^9}{n}=5.6\times10^{27}[/tex]

Rearrange the equation for n as,

[tex]n=\dfrac{8.6\times10^9}{5.6\times10^{27}}\\n=\dfrac{8.6\times10^{9-27}}{5.6}\\n=1.5\times10^{-18}[/tex]

Thus, the quotient of a number 8.4x10⁹ and a number n results in 5.6 x 10^27, with the value of n is 1.5×10⁻¹⁸.

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