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a water hose with a diameter of 2.5 cm is attached to a hydrant, and the...

a water hose with a diameter of 2.5 cm is attached to a hydrant, and the gauge pressure at the hydrant is 312 kpa. at the end if the hose , there is a nozzle with diameter of 6.8 mm.

if the nozzle is at the same height as the hydrant, what is the speed of the water spray out if the nozzle?

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