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February 28, 2015

February 28, 2015

Posted by **ami** on Friday, November 6, 2009 at 3:37am.

- physics -
**drwls**, Friday, November 6, 2009 at 5:11amLet A be the full amplitude displacement and k be the sping constant.

The maximum total energy is

Et = (1/2) k A^2

The potential energy for other displacements is

Ep = (1/2) k x^2

Ep/Et = 5/6 when (x/A)^2 = 5/6

x/A = 0.91287

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