Consider a Submarine at a Depth of 67

Short Answer

Consider a submarine at a depth of 67. meters in sea water (density 1.03 grams/cc) and the interior of the sub is at 1.0 atmosphere.
(a) What is the outside pressure at that depth?
(b) Find the total force that must be withstood by a square hatch (0.90 m square) which leads to the sub interior.