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

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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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From the passage you learn that light pollution , caused by man-made lights , sometimes creates fogs and hazes that make the night sky look like a "dark sheet of paper".
If you compare what you understood from the passage to the alternatives , you ll realize that A) is the one that makes more sense and its more compatible with your awnser.
If you eliminated all alternatives you could but there still are 2 choices remaining and you are not sure which one it is , go back to the passage and try to find evidence for each alternative and try to eliminate one of the alternatives

AWNSER : A)

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