A horizontal force of magnitude 312 n pushes a block of


A horizontal force of magnitude 31.2 N pushes a block of mass4.42 kg across a floor where the coefficient of kinetic friction is0.631.

(a) How much work isdone by that applied force on the block-floor system when the blockslides through a displacement of 4.05 m across the floor?

(b) During thatdisplacement, the thermal energy of the block increases by 33.9 J.What is the increase in thermal energy of the floor?

(c) What is the increase in the kinetic energy of the block?

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Physics: A horizontal force of magnitude 312 n pushes a block of
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