Consider the image shown below.

In the container on the left, there is a gas at an unknown pressure. The tubing connected to the container is open to the atmosphere, which has a pressure of . If the liquid contained within the tubing shows a pressure difference of , as in the above image, what is the pressure of the gas in the container?

An object is initially submerged below the surface of water. If this same object is then lowered to a depth of below the surface of water, how does the absolute pressure on the object change?