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December 21, 2014

December 21, 2014

Posted by **Anonymous** on Sunday, January 9, 2011 at 8:56pm.

i got everything but part d....please help

- physics -
**drwls**, Sunday, January 9, 2011 at 9:43pm(a) The amplitude X is the value for which all energy is potential:

(1/2) k X^2 = 3 Joules

(b) Compute the period P = 2*pi*sqrt(M/k)

Diveide 15s by P for the number of scillations

(c) 3 J, at the equilibrium point where the spring is unstretched.

(d) The speed V at x = 0.14 m can be obtained from

(1/2)k(0.14)^2 + (1/2) M V^2 = 3 J

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