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September 30, 2014

Homework Help: physics

Posted by Anonymous on Saturday, October 31, 2009 at 12:19pm.

A 13.9 kg block is dragged over a rough, horizontal surface by a 70.7 N force acting at 19.8 degrees above the horizontal. The block is displaced 4.55 m, and the coefficient of kinetic friction is 0.298.

How much energy is lost due to friction?

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