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find the minimum value of h for which the gate shown will rotate counterclockwise if the gate cross-section is (a) rectangular, 4 ft x 4

find the minimum value of h for which the gate shown will rotate counterclockwise if the gate cross-section is (a) rectangular, 4 ft x 4 ft; (b) triangular, 4ft at the base x 4 ft high. neglect bearing friction. image text in transcribed

HO 6 psig h 4 ft Air Gate (a) (b) (

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