How Does Nozzle Size Affect Water Speed and Pressure?

AI Thread Summary
The discussion focuses on calculating the speed and pressure of water flowing through a nozzle with a smaller diameter than the hose. The initial conditions include a garden hose diameter of 0.62 inches, a water speed of 0.52 m/s, and a pressure of 1.3 atmospheres. The relevant equation for determining the speed in the nozzle is v2 = v1(A1/A2), where A1 and A2 are the cross-sectional areas of the hose and nozzle, respectively. Participants emphasize the importance of using the correct equations without unnecessary additions. The calculations aim to demonstrate how nozzle size impacts water speed and pressure.
mandi_babe1
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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
 
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mandi_babe1 said:

Homework Equations


v2=v1(A1/A2)

Use this for the first part.

I also don't know what you did in your attempt.
 
mandi_babe1 said:

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.
 
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