How Does Bernoulli's Principle Apply to Fluid Flow in Pipes?

[brv]

Homework Statement

A large water tank has an inlet pipe and an outlet pipe. The inlet pipe has a diameter of 1.89 cm and is 1.29 m above the bottom of the tank. The outlet pipe has a diameter of 5.47 cm and is 4.25 m above the bottom of the tank. A volume of 0.697 m3 of water enters the tank every minute at a gauge pressure of 1 atm.

a) What is the velocity of the water in the outlet pipe?
4.943 m/s

b)What is the gauge pressure in the outlet pipe?

Homework Equations

The Attempt at a Solution

a) What is the velocity of the water in the outlet pipe?
4.943 m/s

I found this part but i don't know how to do the second part.Please help me.

 

[gneill]

Homework Statement

A large water tank has an inlet pipe and an outlet pipe. The inlet pipe has a diameter of 1.89 cm and is 1.29 m above the bottom of the tank. The outlet pipe has a diameter of 5.47 cm and is 4.25 m above the bottom of the tank. A volume of 0.697 m3 of water enters the tank every minute at a gauge pressure of 1 atm.

a) What is the velocity of the water in the outlet pipe?
4.943 m/s

b)What is the gauge pressure in the outlet pipe?

Homework Equations

The Attempt at a Solution

a) What is the velocity of the water in the outlet pipe?
4.943 m/s

I found this part but i don't know how to do the second part.Please help me.

What equation is commonly used in fluid dynamics questions?