Determine the upward acceleration of the shell

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Q. A thing, rigid, spherical shell with a mass of 4.00 kg and diameter of 0.200 m is filled with helium at 0 degrees celsius and 1 atm pressure. It is after that free from rest on the bottom of a pool of water that is 4.00 m deep.

A.) determine the upward acceleration of the shell.

B.) How long would it take for the top of the shell to reach the surface? Disregard the frictional effects.

Reference no: EM1386742

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