Question

A submersible pump is put under the water at the bottom of a well and is used to push water up through a pipe. What minimum output gauge pressure must the pump generate to make the water reach the nozzle at ground level, 75 m above the pump?

Answer 1

Answer:

The Required pressure for this situation is P= 735000Pa

Explanation:

In Determining the required pressure in this situation we use two equations

First one is

F = mg = (ρhA)g

And Second one is

P = $F/A$ = (ρhAg)/A Where P is pressure

We get

P = ρhg  

since g = 9.8 m/s and h is given that is 75m and ρ = $1000 kg/m^3$

so

P = (9.8 m/s)($1000 kg/m^3$)(75) we get

P = 735000 Pa