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Three fire hoses are connected to a fire hydrant. Each hose has a radius of 0.017 meter. Water enters the hydrant through an underground pipe of radius 0.090 meter. In this pipe the water has a speed of 2.5 meter per second.

(a) Determine how many kilograms of water are poured onto a fire in one hour by all three hoses?

(b) Compute what the water speed in each hose.

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