# physics

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2. When a 625g mass is attached to a vertical spring, the spring stretches by 16cm. How much mass must be attached to the spring to result in a .78s period of oscillation?

• physics -

k=mg/x=0.625•9.8/0.16 =38.3 N/m
T=2•π•sqrt(m/k)
m= k•T²/4π²

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