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{"ops":[{"insert":"A small catapult is used to launch 1.5 kg water balloons straight up into the air. A clever student is able to measure the speed of the water balloon while it is rising up into the air. She finds that when the water balloon is 8.0 m above the catapult it is moving at a speed of 20.0 m\/s. (For the purposes of this question, assume that the catapult is positioned in a small hole so that the height of the catapult is level with the ground.)\na) What is the total energy of the water balloon at a height of 8.0 m?\nb) What is the maximum height that the water balloon will reach?\nc) With what speed with the water balloon hit the ground?\nd) If the catapult was 75% efficient, how much energy was stored in the catapult before the water balloon was launched?\ne) What happened to the 25% of the energy that was not transferred to the water balloon?\nThank You in advanced!\n"}]}
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