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A horizontal force of magnitude35.5N pushes a block of mass4.15kg a distance of 3.00 m across a floor, where the coefficient of kinetic friction is 0.600.

a) How much work is done by that applied force on the block-floor system?
_______________J

b) During that displacement, the thermal energy of the block increases by39.0J. What is the increase in thermal energy of the floor?
_______________J

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