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A block with a mass of 42.0 kg is pushed with a horizontal force of 150 N. The block moves at a constant speed across

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A block with a mass of 42.0 kg is pushed with a horizontal force of 150 N. The block moves at a constant speed across a level, rough surface a distance of 7.05 m. (a) What is the work done (in ]) by the 150 N force? (b) What is the coefficient of kinetic friction between the block and the surface

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