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AP® Physics 1 & 2

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Change The Nozzle On The Hose

APPH12-PXJLG3

A hose has a nozzle with a certain diameter on it and water flows through the hose and the nozzle.

If the nozzle is adjusted to have twice the diameter as it did in the beginning, what is the change in the speed of the water coming out of the nozzle as a result of that change?

A

The speed of the water is doubled when the radius is doubled.

B

The speed of the water is multiplied by four.

C

The speed of the water is half what it was with the smaller radius.

D

The speed of the water is one-quarter what it was with the smaller radius.