Question: When water at 2 0 C flows through an 2 8 - c m - diameter pipe, the wall shear stress is 8 2 Pa

When water at 20C flows through an 28-cm-diameter pipe, the wall shear stress is 82 Pa . The properties of water at 20C are =998kgm3 and =0.001kgm*s.
What is the axial pressure gradient (delpdelx) if the pipe is vertical with the flow up?
The axial pressure gradient is Pam.
When water at 2 0 C flows through an 2 8 - c m -

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