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You throw a tennis ball (mass 0.0570 kg) vertically upward. it leaves your hand moving at 15.0 m/s. air resistance cannot be neglected, and the ball reaches a maximum height of 8.00 m. by how much does the total mechanical energy decrease from when the ball leaves your hand to when it reaches its maximum height?
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Physics, 22.06.2019 10:30, gyexisromero10
Air is to be preheated by hot exhaust gases in a cross-flow heat exchanger before it enters the furnace. air enters the heat exchanger at 95 kpa and 20°c at a rate of 0.6 m^3/s. the combustion gases (cp = 1.10 kj/kg°c) enter at 160°c at a rate of 0.95 kg/s and leave at 95°c. determine the rate of heat transfer to the air and its outlet temperature.
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You throw a tennis ball (mass 0.0570 kg) vertically upward. it leaves your hand moving at 15.0 m/s....
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