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A 0.36-kg ball is thrown vertically upward with an initial speed of 12.5 m/s. What is...

A 0.36-kg ball is thrown vertically upward with an initial speed of 12.5 m/s. What is the potential energy of the ball when it has travelled two-thirds of the distance to its maximum height? (Use the launch point to be the zero reference point of measurements of the heights)

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