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The angular momentum of a flywheel having a rotational inertia of 0.242 kg·m2 about its central axis decreases from 9.30 to 0.230 kg·m2/s in 4.40 s.

(a) What is the magnitude of the average torque acting on the flywheel about its central axis during this period?

(b) Assuming a constant angular acceleration, through what angle does the flywheel turn?

(d) What is the magnitude of the average power done on the flywheel?

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