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9. A upright spring with a spring constant of 420 N/m is compressed 35 cm with a 0.64 kg basketball on top. Assuming perfect efficiency

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9. A upright spring with a spring constant of 420 N/m is compressed 35 cm with a 0.64 kg basketball on top. Assuming perfect efficiency and a vertical launch, how high will the spring launch the ball when released? K = 420 N 4.1 m nch acting on a nut, w 41 m . 230 m d. 23 m Momentum

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