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College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300

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BuyFindarrow_forward

College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300
Textbook Problem

Stars originate as large bodies of slowly rotating gas. Because of gravity, these clumps of gas slowly decrease in size. What happens to the angular speed of a star as it shrinks? Explain.

To determine
The angular speed of the star.

Explanation

Introduction:

From the law of conservation of angular momentum, when there is no torque acting,

Iω=constant

  • I is the moment of inertia.
  • ω is the angular speed.

There is no net torque acting on the star

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