From the reservoir A through a short pipeline, water fl

From the reservoir A through a short pipeline, water flows into the reservoir B, and from it through the cylindrical nozzles into the atmosphere.
Determine the flow rate in the system shown in Fig. 1 and the level heights. resistance coefficients: elbow ζк = 0.25, valve ζvent = 5, nozzle ζн = 0.5, hydraulic friction λ = 0.025. The vacuum gauge shows a vacuum gauge hvak = 75mmHg.
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