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Physics, 22.06.2019 11:00
Consider a system to be two train cars traveling toward each other. what is the total momentum of the system before the train cars collide? kg β’ what must the total momentum of the system be after the train cars collide? kg β’
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Physics, 22.06.2019 14:40
An athlete is holding 24 lb of weights at a height of 6 inches above the stack as shown. to lower the weights, she applies a constant force of 5 lb to the handle. determine the velocity of the weights immediately before they hit the stack.
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Physics, 22.06.2019 17:40
You throw a baseball directly upward at time =0 at an initial speed of 14.9 m/s. what is the maximum height the ball reaches above where it leaves your hand? ignore air resistance and take =9.80 m/s2.
Answers: 1
Can you explain to be the definition of quantum theory?...
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