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OpenStudy (anonymous):
A ramp is often used to raise an object. If 90 joules of energy are needed to lift an object to a platform but 100 joules are used in rolling the object up the ramp, what percent energy was wasted in the form of heat due to friction?
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OpenStudy (anonymous):
Help Please !!
OpenStudy (anonymous):
10 Joules were wasted. 10J/100J x 100% is 10%.
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