Задача id10705

Water moves through a pipeline with a diameter of d = 100 mm at a flow rate of Q = 8 l/s (Fig. ). Using a U-shaped mercury manometer, a difference in readings h = 52 mm is taken between sections 1-1 and 2-2, located at a distance l = 50 m from each other. Relative density of mercury d = 13.6. Determine the friction head loss coefficient L.

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