mrsamandagarrett mrsamandagarrett

31-01-2021
Physics

contestada

The water level in a water tower is 45 m above the ground. What is the gauge pressure of the water at a faucet that is 20 m above the ground?

Respuesta :

g3sik3ni g3sik3ni

31-01-2021

Ppump=68600Pa

Explanation:
We understand that the sum of the pressures in the tank and the pump is equal to that of the Nozzle,
Ptank+Ppump=Pnozzle
For the pressure we also know that it is given by
P=Pgh
So
Ppump=pg(h2-h1)
Ppump=1000*9.8(27-20)
Ppump=68600Pa

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