February's Forgotten

[Luce]

Originally Posted by Gravdigr

3. If you're underwater, say, 200 feet, and you let loose some bubbles, will those bubbles move faster, or slower than bubbles released from, say, 50 feet?

I would think faster, because the motive force (the pressure differential) is greater.

ETA: Wait, that's not right. The pressure would be different, but the differential would remain the same, as both fluids are being acted on at the same time.

ETA ETA: Wait, it IS right, because water doesn't compress and air does. Yes, the bubble should move faster the deeper you are.