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Nina [5.8K]
4 years ago
10

Why are river bed rocks smooth

SAT
1 answer:
Nesterboy [21]4 years ago
8 0
They are smooth because of erosion because of the water constantly running through it
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D: recycling

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A spool is on a horizontal surface (with friction) and pulled to the right with a thread attached to the center of the spool, so
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The relationship between the magnitude of the force of tension and the force of friction is; Ff = (r/R)Ft

<h3>What is Rotational Acceleration?</h3>

We are given;

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Read more about Rotational Acceleration at: brainly.com/question/16968864

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