Posted by **please help me** on Saturday, March 26, 2011 at 6:52am.

Water is flowing in a pipe as depicted in the figure. As shown, p = 117 kPa, d = 4.67 cm, d' = 3.06 cm, v = 4.36 m/s, and h = 1.11 m. What pressure is indicated on the upper pressure gauge? Take y = 0 at the bottom of the left pipe so that the center of the left pipe is y1 = d/2.

- physics -
**drwls**, Saturday, March 26, 2011 at 7:41am
Without the figure, I have no idea what the two diameters are, nor where the uppoer pressure gauge is located.

Use the continuity equation

V+d^2 = constant

to relate velocity to pipe diamter.

Then use the Bernoulli equation

(1/2)*(rho)^V^2 + P +(rho)*g*h = 0

to relate pressure (P) to velocity and height. rho is the density of water.

## Answer This Question

## Related Questions

- science - Water is flowing in a pipe as depicted in the figure. As shown, p = ...
- science - Water is flowing in a pipe as depicted in the figure. As shown, p = ...
- Physics - An incompressible fluid is flowing through a horizontal pipe with a ...
- physics - A horizontal pipe contains water at a pressure of 108 kPa flowing with...
- physics - Water flows at 0.860m/s from a hot water heater, through a 450-kPa ...
- physics - water is flowing at 3 m/s in a horizontal pipe under a pressure of 200...
- Physics - A horizontal pipe contains water at a pressure of 120kPa flowing with ...
- physics - The pressure in a section of horizontal pipe with a diameter of 2 cm ...
- AP Physics - Fluids - A 6.0-cm diameter horizontal pipe gradually narrows to 4.0...
- PHYSICS - Water flowing out of a horizontal pipe emerges through a nozzle. The ...

More Related Questions