# Bernoulli's equation

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An airplane flying at high altitude contains 100m^3 of air at STP(273 degrees and 1 atm). If a 1-cm^2 hole suddenly develops in the cabin wall, how long will it take for cabin pressure to drop by half?

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Bernoulli's equation is applied. The cabin pressure applied in an airplane flying at high altitude are given.

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So you need Bernoulli's equation to solve this.

Inside the cabin you are at STP - so you know P1 and the specific gravity of air at STP...

I suggest that you assume p2 is zero (high altitude). That ...

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