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OpenStudy (anonymous):
What is the gravitational potential energy of the tennis ball at the top of each hill? (mass of a tennis ball is approximately .057 kg) Hint: Remember to convert centimeters to meters. The heights of each hill is: The first one : 14 inches The second one : 18 inches The last one: 21 inches I pretty sure i came up with the completely wrong answer. please help (:
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