Posted by Lauren on Monday, October 1, 2012 at 1:49pm.
force=pressure*PI*12^2
So the issue not given, is what the pressure inside relative to? Relative pressure? If so, no answers are correct, unless you assume atmospheric pressure outside is 1atm.
Now if the absolute pressure inside is 2 atm, and the outside pressure is 1 atm, then 13,300 lb is the best answer.
A very poorly stated question.
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