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November 29, 2014

Homework Help: physics

Posted by rachel on Thursday, October 30, 2008 at 3:15am.

a spring with spring constant k= 100N/m is at its equilibrium length
a) how much elastic potential energy is stored in the spring?
b) the same spring is stretched so that it is 6cm longer than it was. How much elastic potential energy is stored in the spring now?
c) a different spring with spring constant four times larger than in part (a) is compressed so that it is 2cm shorter than its equilibrium length. How much elastic potential energy is stored in this spring?

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