an someone help me with this Physics question??

Posted on 2014-12-04 07:40:00 in Physics by SNUGGLE

A closed barrel with lid area .30m^2 jas a thin pipe of cross sectional area 1x10^-5 m^2 sticking out of the top. The barrel is filled with water through this thin pipe until the water level raises 15m above the top of the barrel at which point the lid bursts.

a) Find the absolute pressure of the water pushing on the lid when it had burst.

b) Find the total force that the water was exerting upward on the barrel lid.

c) Find the net force on the lid by substracting the force due to the atmospheric pressure pushing down on the lid.

Any help and explanation is greatly appreciated since I'm not sure how to approach this problem!

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