(adsbygoogle = window.adsbygoogle || []).push({}); Equation of Continuity--Three Fire Hoses and Pipes

1. The problem statement, all variables and given/known data

Three fire hoses are connected to a fire hydrant. Each has a radius of 0.020 m. Water enters the hydrant through an underground pipe of radius 0.080 m. In the pipe the water has a speed of 3.0 m/s. How many kilograms of water are poured onto the fire in one hour? What's the water speed in each hose?

2. Relevant equations

A1 x V1 = A2 x V2

m = V x rho

I'm not really sure what other equations are relevant.

3. The attempt at a solution

I don't even know where to start. I need the volume...I think, and I'm very confused.

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Equation of Continuity-Three Fire Hoses and Pipes

**Physics Forums | Science Articles, Homework Help, Discussion**