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A 160 kg woman stands at the rim of a hor- izontal turntable with a moment of inertia of 3.0×103 kg·m2 and a radius of 2.2 m. The system is initially at rest, and the turntable is free to rotate about a frictionless vertical axle through its center. The woman then starts walking clockwise (when viewed from above) around the rim at a constant speed of 0.53 rad/s relative to Earth. With what angular speed does the turntable rotate?

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