You will have noticed that, in recent weeks, I’ve been posting divers physics problems on here. They seem to be quite popular so I thought I’d try another, which I found this morning in an old A-level physics textbook:
A diving bell of internal volume 6 m3 is lowered into a freshwater lake until the volume of the contained air is 4 m3. The height of a water barometer at the surface is 10 m. Assume that the temperature of the air in the bell does not change as the bell is lowered.
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