A glass bottle of soda is sealed with a screw cap. Theabsolute pressure of the carbon dioxide inside the bottle is 1.90×105Pa. Assuming that the top and bottom surfaces of the cap eachhave an area of 3.60×10−4m2,obtain the magnitude of the force that the screw thread exerts onthe cap in order to keep it on the bottle. The air pressure outsidethe bottle is one atmosphere.

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wheezym · Accepted Answer

The cap has the atmosphere is pushing on it in the positedirection than the pressure inside.  F≠t=F∈−Fatm  Fatm=PatmA  Fatm=1.01E5×3.6E−4=36.5  F≠t=68.4−36.5=31.9

A glass bottle of soda is sealed with a screw cap. Theabsolute pressure of the carbon dioxide inside the bottle is 1.90\times10^5Pa. Assuming that the

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