A fire hose 4 cm in diameter is capable of spraying water
A fire hose 4 cm in diameter is capable of spraying water at a velocity of 20 m/s. For a continuous horizontal flow of water, what horizontal force should a fireman exert on the hose to keep it stationary?
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a fire hose 4 cm in diameter is capable of spraying water at a velocity of 20 ms for a continuous horizontal flow of
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