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2 years ago

What is the acceleration of a different speck of dust that is twice as far from the center of the disk?.

SAT

1 answer:

mariarad [96]2 years ago

5 0

The acceleration of a different speck of dust is 40 m/s.

Since the radius is been given as double and angular velocity will be constant, we can calculate the centripetal acceleration as

a = (2r)ω²

If we substitute the given values of r= 2r , and ω²= 20m/s.

Then we have

$a= (2*20) = 40 m/s^2$

Therefore, acceleration of a different speck of dust is 40 m/s.

<h3>What is centripetal acceleration?</h3>

centripetal acceleration can be regarded as acceleration of a body that is traversing a circular path.

CHECK THE COMPLETE QUESTIONS;

A speck of dust on a spinning dvd has a centripetal accelera- tion of 20 m/s2.

a. what is the acceleration of a different speck of dust that is twice as far from the center of the disk?

Learn more about centripetal acceleration at;

brainly.com/question/6217221

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How does the piano interact with the orchestra in piano concerto 17

Firlakuza [10]

The piano interacted with the orchestra in piano concerto 17 through the use of three movements which is included in the list mentioned below:

Allegro ₄⁴

Andante ³₄ in C major

Allegretto – Presto ₂².

<h3>What is an Orchestra?</h3>

This is referred to a large congregation of instrumentalists playing together in a concert or a show etc. Examples of musical instruments which are used include violin, trumpet etc with each having their unique sound and melody.

Piano concerto 17 was written by Wolfgang Amadeus Mozart in 1784 who was regarded as one of the most influential composers of music. This concerto is regarded as a classic due to the synergy of the three movements mentioned above and how they were used.

Read more about Orchestra here brainly.com/question/910231

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2 years ago

a ball pushed with a force of 13.5 n accelerates at 6.5 m/s2 to the right. what is the mass of the ball?

denis23 [38]

Answer:

Explanation:

the equation you use here is m=fa or mass=force x acceleration

you plug in the 13.5 N as the force, 6.5 m/s^2 as the acceleration, and do the math.

13.5 x 6.5

That would equal 87.75 which would be your answer.

7 0

2 years ago

In a certain region, 94 percent of the people have a certain characteristic in their blood. Suppose a group of 45 people from th

Damm [24]

The best interpretation of the mean is;

Option A; For all groups of 45 people, the average number of people without the characteristic is 2.7

<h3>Interpretation of Mean</h3>

We are given;

Percentage of people with a certain characteristic in their blood = 94%

Number of people selected = 45

Number of people without the characteristic in their blood = B

Now, we are told that B follows a binomial distribution with a mean of 2.7 people.

Now, in statistics, mean is defined as the average of a set of data.

Thus, this mean refers to the average number of people that don't have the characteristic in their blood from the group of 45 people.

The missing options are;

A) For all groups of 45 people, the average number of people without the characteristic is 2.7.

B) Every group of 45 people will have 2.7 people with the characteristic.

C) Every group of 45 people will have 2.7 people without the characteristic.

D) On average, 2.7 people are selected until finding someone with the characteristic

E) On average, 2.7 people are selected until finding someone without the characteristic

Read more about Interpretation of Mean at; brainly.com/question/20434315

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3 years ago

What is one financial goal that you have? How do larger economic factors influence your pursuit of this goal?

saveliy_v [14]

A financial goal that I have is to have a well-paying job as I get out of high school so I can afford to go to a University of my choice. This way I won't be in crippling debt and have to take out massive student loans. However, inflation as well as taxes will influence this. Income taxes will force me to have to give up some of my hard-earned money, which will significantly reduce the amount of money I actually make.
I hope this helps! :D If so, will you add it as the brainliest? Thanks! :D

4 0

3 years ago

Read 2 more answers

"getting up too was an equally short process. he jumped out of the box, shook himself, picked out one or two straws that had fou

exis [7]

The way that D is characterized by Alger in the given excerpt from the passage is that; He is Indifferent

<h3>What is the Inference from the passage?</h3>

The complete question is as seen in the brainly link attached.

From the given passage, we see that D doesn't really dislike dirt because he doesn't think that it's important to wash off dirt.

From D's behavior above, we can say that he is indifferent to the customs of his culture because most people in that culture will wash themselves to get rid of the dirt but he doesn't think it is important like the culture thinks.

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7 0

2 years ago