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May 27, 2015

Homework Help: PHYSICS

Posted by AMBER on Monday, November 1, 2010 at 12:03am.

NEED HELP ON THE ANSWER OF THIS PROBLEM
THE EFFICIENCY OF THE PULLEY DECREASES WITH A COEFFICIENT OF FRICTION OF 2.0 THE EFFICIENCY OF THE PULLEY IS 60% WHAT WOULD YOU EXPECT THE EFFICIENCY TO BE IF THE COEFFICIENT OF FRICTION INCREASED TO 0.3

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