Question: Three pipes steadily deliver water at 20°C to a large exit pipe in Fig. P3.8 The velocity V2 = 5 m/s, and the exit flow

Three pipes steadily deliver water at 20°C to a large exit pipe in Fig. P3.8 The velocity V2 = 5 m/s, and the exit flow rate Q4 = 120 m3/h. Find (a) V1;
(b) V3; and (c) V4 if it is known that increasing Q3 by 20% would increase Q4 by 10%.

D3 6 cm D2 5 cm D4 9 cnm Di 4 cm

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