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Two carts, one of mass 2m and one of mass m, approach each other with the same speed, v. when the carts collide, they hook together. assume that positive momentum is to the right. which graph best represents the momentum of both carts over time, before and after the collision?
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Awave has a wavelength of 7 mm and a frequency of 19 hertz. what is its speed?
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14. Match the numbers in this mathematical expression with the number of significant digits they hav...
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