Compute the all part of given question:
Question: A spring with spring constant 12N/m hangs from the ceiling. A ball is attached to the spring and allowed to come to rest. It is then pulled down 9.0cm and released. The ball makes 38 oscillations in 19s seconds.
Part I: What is the mass of the ball?
Part II: What is its maximum speed?
Please use as much detail as required in answer. Thanks.