A boy of mass 547 kg is initially on a skateboard of mass
A boy of mass 54.7 kg is initially on a skateboard of mass 2.00 kg, moving at a speed of 10.3 m/s. The boy falls off the skateboard, and his center of mass moves forward at a speed of 11.1 m/s. Find the final velocity of the skateboard.
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an electron in the hydrogen atom jumps from a level in which the energy is 189 ev higher than the energy of the final
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your friend mark suggested that you should open an individual retirement account he said that an ira is a great way to
a boy of mass 547 kg is initially on a skateboard of mass 200 kg moving at a speed of 103 ms the boy falls off the
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