College Physics Quiz
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ROTATION: ENERGY & ANGULAR MOMENTUM
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A potter's wheel with moment of inertia 0.15 kg⋅m20.15 \text{ kg⋅m}^2 spins at 120 rpm120 \text{ rpm}. The potter places a 0.50 kg0.50 \text{ kg} lump of clay at the center and then moves it outward to 0.20 m0.20 \text{ m} from the center. What is the wheel's angular velocity when the clay is at r=0.20 mr = 0.20 \text{ m}?
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