Important new formulas since last midterm:

The additional pressure felt when you are under a fluid (with height h above you) is

Archimedes principle: the buoyant force on an object = the weight of the fluid displaced.

Thus, an object totally immersed in a fluid feels an upward buoyant force of

Latent heat: L=Q/m, where Q is the heat (energy) added to mass m, resulting in phase change.