Posted by BrOwN GuRL on Sunday, November 11, 2007 at 6:11am.
The flow rate of a liquid through a 2.0cm radius pipe is 0.0080 m^3/s. the average fluid in the pipe is?
i know that Av=volume flow rate
for this problem the flow rate is 0.008m^3/s. Do i divide by the radius^2 to get velocity or is there someother equation im supposed to be using

physics  drwls, Sunday, November 11, 2007 at 8:22am
Volume flow rate Q (which is 0.0080 m^3/s in your case) is always equal to the product of fluid velocity and the cross sectional area of the flow. In this case that area is pi*r^2, where r is the pipe radius.
Therefore V = Q/(pi r^2) 
physics  lauren, Sunday, November 2, 2014 at 11:19pm
6.4 m/s