Is the equation for hydrostatic pressure limited to liquids? Or can it be used for air pressure as well?
The concept of 'hydrostatic pressure' applies to fluids, either liquid or gas. Remember the pressure of the atmosphere decreases with increasing elevation, or increases with decreasing elevation, just as pressure in the oceans increases with depth.
Please provide the equation to which one is referring.
Sorry, here it is:
p = p0 + (rho)gh
So, I can calculate both the pressure at the bottom of an ocean and the pressure at the top of a mountain using this method?