10.33: a) m. N 358 rev/min rad/s 30 rev/min) (400 W) 10 150 ( / 3 ⋅ = × = = π ω P τ b) If the tension in the rope is N. 10 79 . 1 / so and , 3 × = = = R τ w w F F c) Assuming ideal efficiency, the rate at which the weight gains potential energy is the
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