Posted by **lupe** on Monday, January 11, 2010 at 10:06pm.

Water flows at 12 m/s in a horizontal pipe with a pressure of 3.0 x 10 4 N/m2 . If the pipe widens to twice its original radius, what is the pressure in the wider section?

- Physics -
**drwls**, Monday, January 11, 2010 at 10:36pm
The water speed will drop by a factor 1/4 because of the larger pipe area. That follows from the incompressible fluid continuity equation, V * Area = constant. The water speed in the wider section is 3 m/s

Use the change in velocity and the Bernoulli equation to get the change in pressure.

P + (1/2)(density) V^2 = constant

P2 - P1 = (1/2)(water density)(V1^2 - V2^2

Solve for P2.

- Physics -
**Anonymous**, Wednesday, April 15, 2015 at 9:49pm
xas

## Answer This Question

## Related Questions

- physics - Water flows in a cylindrical, horizontal pipe. As the pipe widens to ...
- PHYSICS - Water flowing out of a horizontal pipe emerges through a nozzle. The ...
- Physics - Water flows under pressure from one pipe into a second pipe having ...
- physics - Water is flowing into a factory in a horizontal pipe with a radius of ...
- physics - A horizontal pipe contains water at a pressure of 108 kPa flowing with...
- Physics - A horizontal pipe contains water at a pressure of 120kPa flowing with ...
- physics - A horizontal pipe 17.00 cm in diameter has a smooth reduction to a ...
- physic - Water flows through a 4.0-cm-diameler horizontal pipe ata speed uf 1.3 ...
- Physics - Water at a pressure of 400,000Pa flows through a horizontal pipe at a ...
- Physics - The pressure of water flowing through a 6.5×10−2−m -radius...

More Related Questions