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Angela is an Olympic figure skater. At the end of her performance, she spun. Her weight is 53 kg, and her intal moment of inertia and angular velocity are 3.0 kg m and 0.5
revis, respectively. Find Angela's intial and final kinetic energy as she pulls her arms in to her stomach if her final moment of inertia is 2.2 kg m after 1.1s.
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