A 14-kg 15-cm-diameter solid sphere is rotatingabout its


A 1.4-kg, 15-cm-diameter solid sphere is rotatingabout its diameter at 70 rev/min.

(a) What is its kinetic energy?

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

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Physics: A 14-kg 15-cm-diameter solid sphere is rotatingabout its
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