A grinding wheel is a uniform cylinder with a radius of 8.40 cm and a mass of 0.350 kg . a) Calculate its moment of inertia about its center. Express your answer with the appropriate units. b)Calculate the applied torque needed to accelerate it from rest to 2000 rpm in 8.00 s if it is known to slow down from 1250 rpm to rest in 52.5 s .

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