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August 1, 2015

Homework Help: another physics question

Posted by Jen on Sunday, December 10, 2006 at 2:12pm.

A liquid ( = 1.65 g/cm3) flows through two horizontal sections of tubing joined end to end. In the first section the cross-sectional area is 10.0 cm2, the flow speed is 275 cm/s, and the pressure is 1.20 105 Pa. In the second section the cross-sectional area is 3.50 cm2.

a.Calculate the smaller section's flow speed.
b.Calculate the smaller section's pressure.

I found part a but not b.

a. Use the equation of continuity A1V1=A2V2

b. Use bernoullis equation. If you post your work, perhaps we can help.

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