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An ice skater has a moment of inertia of 5.0 kg•m2 when her arms are outstretched....

An ice skater has a moment of inertia of 5.0 kg•m2 when her arms are outstretched. If she pulls in her arms and decreases her moment of inertia to 2.0 kg•m2, she will be spinning at 7.5 rps. How fast is she spinning initially? Report your answer in revolutions per second (rps).

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