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Physics HW#1 A 500 g block slides down a 20.0 incline at speed 3.0m/s. After the block has traveled 2.0m along the incline, its speed

Physics HW#1

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A 500 g block slides down a 20.0 incline at speed 3.0m/s. After the block has traveled 2.0m along the incline, its speed is 4.3 m/s. (a) After the block has slid 2.0m down the incline, by what amount has the thermal energy of the block-incline system changed? (b) What is the coefficient of kinetic friction between the block and the incline

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