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July 31, 2014

Homework Help: physics

Posted by roxy on Thursday, October 22, 2009 at 12:56pm.

15 joules of work are done by forces other than gravity in taking an object from a position 3 m above the ground to a position 8 m above the ground. What is the change in the gravitational potential energy of the object?

o A. It decreases by 5 joules.

o B. It increases by 5 joules.

o C. It increases by 11 joules.

o D. It increases by 15 joules.

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