How Does Nozzle Size Affect Water Speed and Pressure?

[mandi_babe1]

Homework Statement

A garden hose with a diameter of 0.62in has water flowing in it with a speed of 0.52m/s and a pressure of 1.3 atmospheres. At the end of the hose is a nozzle with a diameter of 0.21 in.
a.)Find the speed of the water in the nozzle.
b.)Find the pressure in the nozzle.

Homework Equations

v₂=v₁(A₁/A₂)

The Attempt at a Solution

100+1/2(?)1.2²=50+1/2(?)v²

 

[rock.freak667]

Homework Equations

v₂=v₁(A₁/A₂)

Use this for the first part.

I also don't know what you did in your attempt.

 

[Mark44]

Homework Statement

A garden hose with a diameter of 0.62in has water flowing in it with a speed of 0.52m/s and a pressure of 1.3 atmospheres. At the end of the hose is a nozzle with a diameter of 0.21 in.
a.)Find the speed of the water in the nozzle.
b.)Find the pressure in the nozzle.

Homework Equations

v₂=v₁(A₁/A₂)

The Attempt at a Solution

100+1/2(?)1.2²=50+1/2(?)v²

There should not be any addition in your equation. As rock.freak667 suggests, use your relevant equation.