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Extracted text: Figure shows a lawn sprinkler with unequal arms. The jets issuing out of Example 7.12 40 cm the sprinkler arm of 0.8 cm in diameter and the total discharge is 1.2 l/s. (a) Assuming zero friction, determine the rotational speed of the sprinkler. (b) What torque would be required to hold the sprinkler stationary? 1 60° 20 cm- V2