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September 3, 2015

Homework Help: physics

Posted by julie on Wednesday, January 12, 2011 at 3:21pm.

A 215 g mass is attached to a spring and executes simple harmonic motion with a period of 0.250 s. If the total energy of the system is 2.30 J.
(a) Find the force constant of the spring.
135.81 N/m
(b) Find the amplitude of the motion.

i just need help with what equation i should use. im stumped on this question.

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