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ghjk 
 Impulse and momentum!
Сообщение12.08.2008, 10:48 
A jet of water from a nozzle 2.5 cm in diameter has a velocity of 30m/s and strikes a flat plate held normal to the jet and moving away from the jet at 6m/s.
a)Compute the force exerted by the jet on the moving plate
b) What is the force if the plate is moving toward the jet at 6m/s?Water has a density of 10^3kg/m^3
 
 
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