Two objects with a mass of 1 x 10^-3 kg and 4 x 10^-3 kg have equal momentum. What is the ratio of their kinetic energy?

University Physics Volume 1
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Author:William Moebs, Samuel J. Ling, Jeff Sanny
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Chapter8: Potential Energy And Conservation Of Energy
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Problem 32P: A mouse of mass 200 g falls 100 m down a vertical mine shaft and lands at the bottom with a speed of...
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Two objects with a mass of 1 x 10^-3 kg and 4 x 10^-3 kg have equal momentum. What is the ratio of their kinetic energy?

 

A weight lifter lifts a 350-N set of weights from the ground level to a position over his head, a vertical distance of 2.00m.  How much work does the weight lifter do, assuming he moves the weights at constant speed?

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