Question: Modify Prob. 5.61 so that the rotation speed is unknown but D = 12 cm and Q = 25 m3/h. What is the maximum rotation

Modify Prob. 5.61 so that the rotation speed is unknown but D = 12 cm and Q = 25 m3/h. What is the maximum rotation speed for which the power will not exceed 300 W? What will the pressure rise be for this condition?

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