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# Water flows by gravity from the reservoir 1 to the reservoir 2 through a constant 5 cm diameter piping system as shown in the figure below. The flow rate is 5 L/s. The fluid at points 1 and 2 is open to the atmosphere (P P2-Patm). The density of the water is 1000 kg/m3, the dynamic viscosity is -1.307×10-3 kg/m, the roughness of the internal surface of the pipe is 0.00026 entrance, K-05 Standard elbow, langed, Ky-03 D 5 cm 4m Gate valve fully open volume boundary 80 m Esit, K-1.06 Question 3 Calculate: the average velocity, Reynolds number, Total pressure drop (sum of Minor and Major) Question 4 Assume that the fluid velocities at points 1 and 2 are nearly zero (V V2-0) apply the principle of energy conservation (Bernoulli with losses) (points 1 and 2) to determine the elevation zi

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