1. The problem statement, all variables and given/known data A submarine is at a depth of 500 m under the water. The force on a circular hatch of 1.00 m in diameter due to the seawater (density = 1,025 kg/m3) pressure from outside the submarine is: 2. Relevant equations F=PA P2-P1=pgd 3. The attempt at a solution F=(pgd+P1)A where A = pi*r^2 When I plug in all the values, I cannot get the answer.