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Average velocity in a circular tube. Using equation (1) for the velocity in a circular tube as a function of radius r, (1) derive equation 

Average velocity in a circular tube. Using equation (1) for the velocity in a circular tube as a function of radius r,

(1) image text in transcribed

derive equation (2) for the average speed:

(2) image text in transcribed

vz=41dzdp(r2r02) vzprom=8r02dzdp

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