Hi i need some help with a problem: A submarine has a 40.0cm diameter window 8.50cm thick. The window can withstand forces up to 1.10x106 N. What is the submarine's maximum safe depth? The pressure is maintained at 1.0atm and it's in salt water. Salt water density = 1025 kg/m3. the equation that i used was p = patmos + [tex]\rho[/tex]gd p = 1.013x105 + (1.0253)(9.8)(d) What i did to try to find p was p = F/A. <---- If this equation to find pressure is correct, how to I calculate the area from diameter and thickness? Thanks.