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A wheel (mass = 7.54 kg, radius = 16.8 cm) rolls, without slipping, down the side of a hill. Initially, the wheel is at rest 1.45 m above the bottom of the hill. At the bottom of the hill, the wheel is rolling, without slipping, with linear velocity 2.44 m/s. How much energy does the wheel lose to friction? Treat the wheel as a thin-walled hollow cylinder.

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