A vertical cylindrical shell storage tank of 4 m inside diameter and 6 m high is filled with three liquids having specific gravities of 3, 1 and 0.8. Each liquid has heights of 2 m inside the tank. A sharp edge orifice 120 mm diameter with C = 0.65 is located at the lowest point Determine the time to empty one half of its contents through orifice.  Determine the time to empty th

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