Answer to Question #220609 in Physics for Joseph Sympathy

Question

An air bubble is rising up from the bottom of a pond. Find the depth of the pond, if its volume at the surface becomes eight times its volume at the bottom. Find the depth of the pond.

Answer 1

$$p_1V_1=p_2V_2\\p_1=8p_2=8\ atm\\ \rho gh=p_2-p_1\\7(101325)=1000(9.8)h\\h=72.4\ m$$