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A spring with spring constant 15.5 N/m hangs from the ceiling. A ball is suspended from...

A spring with spring constant 15.5 N/m hangs from the ceiling. A ball is suspended from the spring and allowed to come to rest. It is then pulled down 6.00 cm and released. The ball makes 25.0 oscillations in 20.0 seconds.

Part A

What is the mass of the ball?

Express your answer to three significant figures and include the appropriate units.

Part B

What is the maximum speed?

Express your answer to three significant figures and include the appropriate units.
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