A 150-mm pipe branches into a 100-mm and a 50-mm pipe as shown in Fig. Both pipes are copp...

A 150-mm pipe branches into a 100-mm and a 50-mm pipe as shown in Fig. Both pipes are copper and 30 m long. (The fluid is water at 10°C.) Determine what the resistance coefficient K of the valve must be to obtain equal volume flow rates of 500 L/min in each branch.

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