A 12 cm diameter cd has a mass of 21 g. what is the cd's moment of inertia for rotation about a perpendicular axis through the edge of the disk?

Answers

Answer 1

The moment of inertia for rotation about the perpendicular axis through the edge of the disk is 3.78 × 10⁻⁵ kgm².

Moment of inertia

Moment of inertia is referred to as the product of mass of section and the square of the distance between the reference axis and the centroid of the section.

Moment of inertia of solid cylinder or disk is expressed as;

I = 1/2 × mr²

Given the data in the question;

Mass of disk m = 21g = 0.021kgDiameter of disk d = 12cm = 0.12mRadius r = d/2 = 0.12m / 2 = 0.06mMoment of inertia I = ?

We substitute our given value into the expression above.

I = 1/2 × 0.021kg × (0.06m)²

I = 1/2 × 0.021kg × 0.0036m²

I = 3.78 × 10⁻⁵ kgm²

Therefore, the moment of inertia for rotation about the perpendicular axis through the edge of the disk is 3.78 × 10⁻⁵ kgm².

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Related Questions

Which detail from black boy best helps to develop the central idea that richard learns face his fears to help feed his family?

Answers

Answer:

"I hit again and again, dropping the money and the grocery list. The boys scattered, yelling, nursing their heads, staring at me in utter disbelief. They had never seen such frenzy."

Explanation:

just took test

Answer: "I hit again and again, dropping the money and the grocery list. The boys scattered, yelling, nursing their heads, staring at me in utter disbelief. They had never seen such frenzy."

Explanation:

just took test

Course 3 chapter 5 triangles and the pythagorean theorem

Answers

The pythagorean theorem is used to calculate the lengths of a right triangle

The hypotenuse of the triangle is 6.5 cm

How to determine the hypotenuse of the triangle?

From the complete question, we have the following side lengths

Opposite = 5.7 cmAdjacent = 3.2 cm

The hypotenuse of the triangle is then calculated as:

Hypotenuse^2 = Opposite^2 + Adjacent^2

This gives

Hypotenuse^2 = 3.2^2 + 5.7^2

Evaluate the sum

Hypotenuse^2 = 42.73

Take the square root of both sides

Hypotenuse = 6.5

Hence, the hypotenuse of the triangle is 6.5 cm

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The standard form of the equation of a circle is (x−3)2+(y−1)2=16. what is the general form of the equation?

Answers

Answer:

x=3 y=1

Explanation:

x-3=0 y-1=0

x=3 y=1

(3-3)2+(1-1)=16

Answer:

Hello! Really really sorry I am alte! Hope this helps though! Have a nice day! And really helpful for k12 users!

Explanation:

Which propaganda technique is represented by the quote, "my opponent is soft on crime!"? a) bandwagon b) name calling c) stacked cards d) glittering generality

Answers

The propaganda technique represented by the quote "my opponent is soft on crime!" is name calling (Option b).

What is name-calling?

The expression name-calling makes reference to the propaganda based on stereotypes and/or labeling.

The name-calling strategy can be a direct or indirect manner for making the propaganda in the media.

This propaganda (name-calling) occurs when complementary expressions-words are used by the media to describe people.

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Which three items should a user remember when rating digital information

Answers

The three items  a user remember when rating digital information are

Accuracy, Distribtion and Information

Digital Information Rating

Digital Ratings give us information about an idea of its content consumption by estimating

audience outreach, frequency and tme spent on digital contenet gross rating point (GRP).

When rating any digital information, it is important to rememnber

Accuracy : This determines the quality of the informationDistrribution: This determines its sustainabilityInformation: This determines its relevance

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A hotel installs a new swimming pool and a new hot tub

Answers

Answer:

What's the question

Explanation:

?????

What is the length of the unknown leg of the given rigth triangle? startroot 3 endrootft startroot 6 endrootft startroot 39 endrootft startroot 89 endrootft

Answers

Could you please include a picture? If there is one.

Answer:

39 ft.

Explanation:

Correct on Edge

Calculate the number of moles contained in 550. ml of carbon dioxide at stp.

Answers

Considering the definition of STP conditions, 0.02455 moles are contained in 550 mL of carbon dioxide at STP.

Definition of STP condition

The STP conditions refer to the standard temperature and pressure. Pressure values at 1 atmosphere and temperature at 0 ° C are used and are reference values for gases. And in these conditions 1 mole of any gas occupies an approximate volume of 22.4 liters.

Amount of moles contained in 550 mL

In this case, you can apply the following rule of three: if by definition of STP conditions 22.4 liters are occupied by 1 mole of helium, 0.550 L (0.550 L= 550 mL, being 1 L= 1000 mL) are occupied by how many moles?

[tex]amount of moles=\frac{0.550 Lx 1 mole}{22.4 L}[/tex]

amount of moles= 0.02455 moles

Finally, 0.02455 moles are contained in 550 mL of carbon dioxide at STP.

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State four reasons why knowing the entry requirements is important

Answers

Answer:

to avoid any mistakes

to make sure you are not breaking any rules

to make sure your information is rendered valid

to follow the procedures

Explanation:

.

Which policy did the "nursemaids" use to keep the "baby" quiet?

Answers

This would be the answer because the option is D

Express the interval in terms of an inequality involving absolute value 1 5

Answers

Answer:

Explanation:

Step 1 To express the given interval in terms of an inequality involving absolute value. Step 2 Given information: The interval is (0, 4). Step 3 Calculation: Let (a, b) is an open interval and r is the radius, and the midpoint is c, then the interval can be represented as {x ∈ R | x − c ∣ < r} where c = a + b 2 and r = b − a 2 And the given interval is (0, 4).

Five factors that may lead to youth not being innovative in organising awareness campaign

Answers

Answer:

No knowledge of campagining Little creative to be able to do campaigns Lack of organizing ability.Assumption they dont need to campaignLack of experience and no motivation to learn

Intensive care units (icus) generally treat the sickest patients in a hospital. icus are often the most expensive department in a hospital because of the specialized equipment and extensive training required to be an icu doctor or nurse. therefore, it is important to use icus as efficiently as possible in a hospital. according to a large-scale study of elderly icu patients, the average length of stay in the icu is days (critical care medicine journal article). assume that this length of stay in the icu has an exponential distribution. do not round intermediate calculations.

Answers

a. Probability that the length of stay in the ICU is one day or less is:0.2614.

b. Probability that the length of stay in the ICU is between two and three days is:0.1426

c. Probability that the length of stay in the ICU is more than five days is:0.2198.

Probability

a. Probabilty of one day or less.

Using this formula

P(X≤1)=1-e^-ux

Since mean is 3.3 the decay parameter is:

u=1/3.3

Hence:

P(X≤1)=1-e^-1/3.3

P(X≤1)=1-e^-0.3030

P(X≤1)=1-0.7385991

P(X≤1)=0.2614

b. Probability of two and three days.

P(X≤2)=1-e^-ux

P(X≤2)=1-e^-2/3.3

P(X≤2)=1-e^-0.60606

P(X≤2)=1-0.54549589

P(X≤2)=0.45450

P(X≤3)=1-e^-ux

P(X≤3)=1-e^-3/3.3

P(X≤3)=1-e^-0.909091

P(X≤3)=1-0.402890

P(X≤3)=0.59711

Hence:

P(2≤X≤3)=0.59711-0.45450

P(2≤X≤3)=0.1426

c. Probability of more than 5 days.

P(X≤5)=e^-ux

P(X≤5)=e^-5/3.3

P(X≤5)=e^-1.515152

P(X≤5)=0.219775

P(X≤5)=0.2198 (Approximately)

Inconclusion the probability that the length of stay in the ICU is one day or less is:0.2614.

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Brooke has scores of 84, 72, 90, 95, and 87 on her first five quizzes. after taking the sixth quiz, brooke’s mean score increased. which could be brooke’s sixth quiz score? select three options.

Answers

Answer:

b, d , e

Explanation:

which of the statements explains how an oxygen-rich atmosphere became possible on earth?

Answers

I’m sorry I didn’t understand the question you were trying to get answered. Please give the options and I can try to help you! Thank you.

Find the probability distribution of the random variable w in exercise 3.3, assuming that the coin is biased so that a head is twice as likely to occur as a tail.

Answers

There are four major types of probability and they include:

classical, empirical, subjective axiomaticWhat is Probability?

This refers to the mathematical depictions of the possibility of an event occurring based on given variables.

Please note that your question is incomplete so I gave you a general overview of a probability distribution.

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All animals need to eat blank to get blank to live

Answers

Answer:

Food

Explanation:

I mean what else would it be?

Answer:

All animals need to eat food to get energy to live.

Explanation:

Every animal need to eat food to survive as well as get energy.  Nutrition is the process by which living things get or make food. Thus, the best answer to fit in the blank are:

FoodEnergy

Hence, the blank :

All animals need to eat food to get energy to live.

~lenvy~

What is the sum of the first 26 terms of the arithmetic series? 7+11+15+19+… enter your answer in the box.

Answers

Answer:

1,482

Explanation:

Hope This Helps!

12.1 arithmetic sequences algebra 2 volume 2 answers

Answers

An example of 12.1 arithmetic sequences algebra 2 question is Find the sum of the arithmetic series given as 1,2,3…..99,100.

What is Arithmetic sequences?

An arithmetic sequence is known to be a group or sequence of numbers  that is said to be the difference that exist between any two successive members of the sequence and it is a constant.

To find the sequence, one was given a total of 100 values:

So  n=100.

first value = 1

Last = 100.

[tex]S_{100}[/tex]=100/2 (1+100)= 5050

Therefore the answer is 5050

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Choose the best translation: employer trabajador administración inventario empleador

Answers

Answer:

D. empleador

Explanation:

The Spanish word “trabajadores” translated to English means workers. It is the word that does not fit in the group of answer choices.

What is “Trabajadores”?

“Trabajadores” has been known as a noun while the rest of the words are adjectives that describe an object or a  person. This was expressed in one of his deepest thoughts which expresses that: "the artist works on himself and his time, works to give clarity to his conscience and his contemporaries of himself and his time".

The key to finding the correct descriptor of Yolanda is to pay attention to gender. Yolanda is a feminine name, thus the adjective used to describe someone named Yolanda (presumably a female) in Spanish would take a feminine form.

Therefore, The Spanish word “trabajadores” translated to English means workers. It is the word that does not fit in the group of answer choices.

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What is the total amount of work required to move an electron through a potential difference of 100 volts?

Answers

move a proton through a potential difference of
100. volts?
(1) 1.60 × 10^–21 J (3) 1.00 × 10^2 J
(2) 1.60 × 10^–17 J (4) 6.25 × 10^20 J

Answer:2)1.6x10^-17 J

Explanation:

Explain three things that you do in an airport or airplane when taking a trip. use complete sentences in spanish

Answers

When taking a trip it is important to know the airport regulations, these depend on each country and each airport, so it is advisable to do the following things:

Verifica el estatus del vuelo.Tener los documentos (pasaporte, boletos) en una bolsa de facil acceso.Infórmase sobre las restricciones (líquidos, comida).

Translation:

Check the status of the flight.Have the documents (passport, tickets) in an easily accessible bag.Find out about restrictions (liquids, food).

What to do in an airport?

The first step when you arrive at the airport is to check in the luggage, verify the status of the flight, take an accessible bag to carry all the documentation that can certify you as a tourist under legal conditions.

Find out about the restrictions (liquids, food), knowing in advance what items we should not include in our hand luggage or what the rules of behavior at the airport.

Therefore, we can conclude that when taking a trip it is important to know the airport regulations, these depend on each country and each airport.

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This table shows how many sophomores and juniors attended to school events

Answers

The table of attendees to the event illustrates probability

The probability that a randomly choosen person from this group is a sophomore and attended the volleyball game is: 0.31

The probability that a sophomore and attended the volleyball game

From the table in the complete question, we have the following parameters:

Sophomore and Volleyball = 42

Total = 137

So, the probability that a randomly choosen person from this group is a sophomore and attended the volleyball game is:

P = Sophomore and Volleyball/Total

This gives

P = 42/137

Evaluate the quotient

P = 0.31

Hence, the probability is 0.31

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Precalculus: mathematics for calculus, enhanced review edition solutions

Answers

Answer:

Hello I see you know about math but Is it your question

Explanation:

A water balloon is dropped from a height of 144 feet

Answers

Answer:

3 seconds

Explanation:

Make a graph of the possible outputs for the trajectory of the water balloon. Then, solve for x. Doing this, you end up with 3 seconds.

A water balloon is dropped from a height of 144 feet for 3 seconds.

What is water balloon?

A water balloon, commonly referred to as a water bomb, is a latex rubber balloon filled with water that is used in practical jokes, water balloon fights, and other celebrations.

The first water balloons arrived in 1950, despite the fact that rubber balloons have been around since the first part of the 19th century (Michael Faraday created them in 1824 for his experiments).

At that time, Edgar Ellington tried to come up with a fix for the much more serious issue of trench foot. Trench foot is a condition brought on by extended exposure to cold, damp, and unclean circumstances.

Therefore, A water balloon is dropped from a height of 144 feet for 3 seconds.

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Why does the coach interrupt jeremy at the end of the scene

Answers

The coach interrupt Jeremy at the end of the scene because he wants Jeremy as his assistant and prevents him from refusing the job.

What is the Assistant known for?

A personal assistant, is known to be a person often called personal aide  or personal secretary (PS).

Conclusively, It is a person who helps the head or a coach as in this scenario in some of their daily business activities. Note that The coach interrupt Jeremy at the end of the scene because he wants Jeremy as his assistant and prevents him from refusing the job.

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Answer:

He wants jeremy as an assientant and prevents him from refuse

Explanation:

i got it right

should peanut butter be refrigerated after opening

Answers

I put mine in the fridge, but I know some people in the world probably leave it out so it doesn’t taste cold and get hard when they go to eat it. But that’s just my opinion.

Does drying barley seeds in a kiln increase the yield of barley

Answers

Additional experiments might confirm this or they may confirm our current result where we found no statistically significant difference. The mean difference is -33.7 indicating that, in this study, the kiln-dried seeds did increase corn yield by 33.7 pounds per acre.

Answer:

There is no convincing evidence that drying barley seeds in a kiln increase the yield of barley, on average.

Explanation:

All of the following are examples of postsecondary education except

Answers

Answer:

Answer is B. Military service

Explanation:

Answer is B. Military service

Lesson 11.2 angle theorems for triangles answer key

Answers

There are a lot of Lessons in math. The example of 11.2 angle theorems for triangles is: Find the value of the angle (image attached)?.

What are triangles?

A triangle is known to be a type of polygon that has three edges and three vertices.

To fine the value, not that an angle on a straight line is 180.

So therefore, you subtract the other angles from 180.

It will be 180-90-45= 45.

So therefore, the angle is 45 degree

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