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Q. Water flows over Victoria Falls, which is high, at the average rate of kg/s. If one quarter the potential energy of this water were transformed to electric energy, how much power would be produced by these falls?

Q. A car starts from rest at a stop sign. It accelerates at 4 for 6.4, coasts for 1.5, and then slows down at a rate of 3.5 for next stop sign. How far apart are the stop signs?

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