Hi,
I watched the movie "The Transporter 3" and something striked me. At one point our protagonist dives into a river with his car to get away from the goons. In an attempt to raise his car from the river bed, he leads the compressed air from the tires into some plactic he retrieves from the trunk of the car which he places above the car and attaches to the car it self. This way leading the rising air into the plactic forming kind of a balloon. This is done with all 4 wheels and he succesfully manages to rise the car to the surface and row to shore.
In case you havent seen the movie, I hope you understand what I tried to explain.
My question is:
Does compressed air have less buoyancy/lifting ability than uncompressed air? If not, then the mentioned procedure in the movie is not possible since the air was already in the tires of the car and thus making it rising without releasing it into balloons.
Regards, and thank you for your expert experience of the matter
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