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?

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Chapter5: Energy
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Problem 17P: A large cruise ship of mass 6.50 107 kg has a speed of 12.0 m/s at some instant. (a) What is the...
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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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