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Change in water pressure

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A horizontal pipe carries water. At one point, the pipe widens to four times its previous cross sectional area. If the speed of flow in the narrow part of the pipe is 4 ms, what is the change in pressure from the narrow to the wider part of the pipe?

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This solution calculates the change in water pressure from a narrow to wider part of the pipe.

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a horizontal pipe carries water. at one point, the ...

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