Solve the all parts of following problem:
Problem: A 0.31-kg stone is held 1.4 m above the top edge of water well and then dropped into it. The well has a depth of 4.8 m.
Part A: Taking y = 0 at the top edge of the well, what is the gravitational potential energy of the stone-Earth system before the stone is released?
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Part B: Taking y = 0 at the top edge of the well, what is the gravitational potential energy of the stone-Earth system when it reaches the bottom of the well?
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Part C: What is the change in gravitational potential energy of the system from release to reaching the bottom of the well?
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Write your solution in appropriate format and provide references. Thanks.