Solved: An automatic valve consists of a 9 9-in. square plate that is pivoted about a
Chapter 5, Problem 5.83(choose chapter or problem)
An automatic valve consists of a 9 9-in. square plate that is pivoted about a horizontal axis through A. If the valve is to open when the depth of water is d = 18 in., determine the distance h from the bottom of the valve to the pivot A.
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