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Engineering, 25.04.2020 00:31 gabbee

The wall shear stress in a fully developed flow portion of a 24-in.-diameter pipe carrying water is 1.60 lb/ft2. Determine the pressure gradient, ∂p/∂x, where x is in the flow direction, if the pipe is (a) horizontal, (b) vertical with flow up, or (c) vertical with flow down.

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