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## Main Question or Discussion Point

I have a 39"x75"x0.75" area that has 180lbs resting ontop of it. According to P=F/A or P=180lbs/2,925 I^2 therefore P=0.0615.... If a tube comes off of the side of the "box" that is 0.5" inside diameter would this have a pressure of 0.0615 or would I find this pressure some other way?