Question: The temperature of a plastic cube is monitored while the cube is pushed 3.0 m across a floor at constant speed by u horizontal force

The temperature of a plastic cube is monitored while the cube is pushed 3.0 m across a floor at constant speed by u horizontal force of 15 N. The thermal energy of the cube increases by 20 J. What is the increase in the thermal energy of the floor along which the cube slides?

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