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A figure skater spinning in a circle and dazzling the Olympic judges brings her arms together for a final flourish.
1. Does her angular momentum increase, decrease, or stay the same after she pulls her arm in?
2. Does her angular velocity increase, decrease, or stay the same after she pulls her arms in?
3. Does her angular acceleration increase, decrease, or stay the same after she pulls her arms in?
11 years ago

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