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May 27, 2015

Homework Help: physics

Posted by nancy on Wednesday, March 23, 2011 at 9:08am.

A 13.0 {\rm g} plastic ball is dropped from a height of 2.80 {\rm m} and is moving at 3.20 {\rm m/s} just before it hits the floor.
How much mechanical energy was lost during the ball's fall?
delta E mech = ____ J

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