Wter at 20-c ows in a 08-cm-diameter pipe with a velocity
Water at 20-C flows in a 0.8-cm-diameter pipe with a velocity distribution of uðrÞ ¼ 5ð1 2 r2=16 · 1026Þ m=s. Calculate the shear stress on (a) the pipe wall, (b) at a radius where r ¼ 0.2 cm, and (c) at the centerline of the pipe.
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water at 20-c flows in a 08-cm-diameter pipe with a velocity distribution of uethrthorn frac14 5eth1 2 r216 middot
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