Find the appropriate unit for J (shaft’s polar moment of inertia).

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What is the flow velocity of water in a 12" concrete sewer pipe (Manning's n = 0.013, and assume n is variable with depth) at a slope of 2%, flowing partially full with a flow depth of 3"? Express your answer in ft/s and round to the nearest 0.1.

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Chapter 6, Problem 3P

To determine

Find the appropriate unit for J (shaft’s polar moment of inertia).

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What is the flow velocity of water in a 12" concrete sewer pipe (Manning's n = 0.013, and assume n is variable with depth) at a slope of 2%, flowing partially full with a flow depth of 3"? Express your answer in ft/s and round to the nearest 0.1.

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