Problem Description
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A group of engineering students at OU is planning to participate in the International Autonomous Underwater Vehicle Competition. Students are asked to design a miniature robotic submarine capable of performing realistic missions in the remote underwater environment.

• One of the given constraints is that the underwater vehicle needs to reach a maximum depth of 12 meters.
  
• There are two test sites: one is filled with fresh water and the other filled with seawater.
  

To assist those students in determining the design criteria, the pressure at a depth of 12 meters is needed. Also, how will the density of the fluid affect the calculated pressure?

• Assume the fluid is at rest.
• Assume the fluid is incompressible.