4.33 The lawn sprinkler shown in the figure rotates in the horizontal plane. A water flow of 15 L/min of water enters the center vertically and discharges in the horizontal plane from the two jets. Determine

(a) the torque needed to keep the sprinkler from rotating and

(b) the rotating speed of the sprinkler when the torque is removed.

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- d = 5 mm (+ R = 225 mm P4.33