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Physics, 21.06.2019 22:20, kl8774
Aboxcar traveling at 12 m/s approaches a string of 5 identical boxcars sitting stationary on the track. the moving boxcar collides and links with the stationary cars and they all move off together along the track. what is the final speed of the cars immediately after the collision? (you may take the mass of each boxcar to be 18,537 kg.)
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In a good thermo flask the main cause of heat loss is
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It takes you pushing with 120 Newtons horizontally to move a 12 kg snow pile 4 meters to the right....
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