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Professor Askew has a stone terraced garden in his backyard for growing herbs and vegetables. He...

Professor Askew has a stone terraced garden in his backyard for growing herbs and vegetables. He drags a garden hose, length 75 ft, diameter 3/4 in, around from the side of his house into the backyard intending to water the plants. He turns on the hose and water begins to flow. On closer inspection, he finds that the white bricks that line the garden have a significant amount of dirt on them, detracting from the appearance of the garden. Intending to wash them off, he attaches a nozzle to the hose which restricts the area through which water can flow by a factor of four. When he does this, what happens to the volume of water that pours from the hose? What happens to the velocity of the water?

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Answer #1

volume of water will remain the same.

also using continuity equation, Av = constant

as area is 1/4th of initial area => velocity will become 4 times the initial velocity.

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