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April 18, 2014

Homework Help: physics

Posted by Lynn on Tuesday, January 26, 2010 at 9:30pm.

A 2.8-kg block is hanging stationary from the end of a vertical spring that is attached to the ceiling. The elastic potential energy of the spring/mass system is 1.2 J. What is the elastic potential energy of the system when the 2.8-kg block is replaced by a 5.4-kg block?

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