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## Homework Statement

A 0.296 kg mass is attached to a spring and executes simple harmonic motion with a period of 0.18 s. The total energy of the system is 3.3 J. Find the force constant of the spring. Answer in units of N/m.

## Homework Equations

k=m(t/2[tex]\pi[/tex])^2

## The Attempt at a Solution

k=296(0.18/2[tex]\pi[/tex])^2

I get 0.0002429276699 but it is wrong. Any ideas what i did wrong?

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