Question

A 1.1-kg 20-cm-diameter solid sphere is rotating about its diameter at 73 rev/min.

(a) What is its kinetic energy?

(b) If an additional 5.0 mJ of energy are supplied to the rotational energy, what is the new angular speed of the ball?

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Physics for Scientists and Engineers: Foundations and Connections
Physics for Scientists and Engineers: Foundations and Connections
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ISBN: 9781133939146
Author: Katz, Debora M.
Publisher: Cengage Learning
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