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An ice skater with a moment of inertia of 17 kg m2 spinning at 16 rad/s extends her arms, thereby changing her moment of inertia

An ice skater with a moment of inertia of 17 kg m2 spinning at 16 rad/s extends her arms, thereby changing her moment of inertia to 33 kg m2. Find the new angular velocity. Hint: conserve angular momentum

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