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An ice skater starts a spin with her arms stretched out to the sides. She balances on the tip of one skate to turn without friction. She then pulls her arms in so that her moment of inertia decreases by a factor of 2. Using the ideas of moment of inertia, conservation of angular momentum, and rotational velocity, explain what happens to her rotational kinetic energy. *
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An ice skater starts a spin with her arms stretched out to the sides. She balances on the tip of one...
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