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## Homework Statement

If the initial period is 3.0 s and the mass is reduced to 1/3 of its initial value, what is the new period?

## Homework Equations

Possibly T=2pi*squareroot(m/k)

## The Attempt at a Solution

The solution is something close to 1.73. I have no idea what equation to use, even. Any assistance would be appreciated.

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