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Water, with a density of ρ = 1155 kg/m3, flows in a horizontal pipe. In one...

Water, with a density of ρ = 1155 kg/m3, flows in a horizontal pipe. In one segment of the pipe the flow speed is v1 = 7.73 m/s. In a second segment the flow speed is v2 = 1.57 m/s. What is the difference between the pressure in the second segment (P2) and the pressure in the first segment (P1) ?

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Answer #1

Here we are going to use the Bernoulli's equation at two different section of pipe called as point 1 and point 2.

I.e

Sum of energy at point 1 = sum of energy at point 2

Interchanging the place, we get

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