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While Spinning Down from 500 Rpm to Rest,a Flywheel Does $3.9 \mathrm {~kJ}$

Question 8

Multiple Choice

While spinning down from 500 rpm to rest,a flywheel does $3.9 \mathrm {~kJ}$ of work.This flywheel is in the shape of a solid uniform disk of radius 1.2 m.What is the mass of this flywheel?

A) 4.0 kg
B) 3.4 kg
C) 4.6 kg
D) 5.2 kg

While Spinning Down from 500 Rpm to Rest,a Flywheel Does 3.9 kJ3.9 \mathrm {~kJ}3.9 kJ

Multiple Choice

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While Spinning Down from 500 Rpm to Rest,a Flywheel Does $3.9 \mathrm {~kJ}$

Correct Answer:
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