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Physics Homework Question?

0 votes

What gauge pressure in the water mains is necessary if a firehose is to spray water to a height of 21 m ?

asked Oct 30, 2015 in PHYSICS by anonymous

1 Answer

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Height of the water in firehose is 21 m.

Pressure image.

image is the density of water image.

image is the acceleration due to gravity image.

image is the height.

image

image

image

Pressure is 2.03 atm.

answered Oct 30, 2015 by Lucy Mentor

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