The angular momentum of a flywheel having a rotational inertia of \( 0.140 \mathrm{~kg} \cdot \m...

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The angular momentum of a flywheel having a rotational inertia of \( 0.140 \mathrm{~kg} \cdot \mathrm{m}^{2} \) about its central axis decreases from \( 3.00 \) to \( 0.800 \mathrm{~kg} \cdot \mathrm{m}^{2} / \mathrm{s} \) in \( 1.50 \mathrm{~s} \). What is the magnitude of the average torque acting on the flywheel about its central axis during this period?
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