You're designing a manned submersible to withstand the pressure of seawater at the bottom of the Marianna Trench, which is one of the deepest parts of the earth's oceans. The bottom of the Trench is at a depth of 10,900 m. 1) What is the gauge pressure at this depth? 2) What is the inward force on a circular glass window 6.0 cm in diameter due to the water outside? 3) if the internal pressure is 1atm, what outward force does this produce on the window?
Fluid Pressure
The term fluid pressure is coined as, the measurement of the force per unit area of a given surface of a closed container. It is a branch of physics that helps to study the properties of fluid under various conditions of force.
Gauge Pressure
Pressure is the physical force acting per unit area on a body; the applied force is perpendicular to the surface of the object per unit area. The air around us at sea level exerts a pressure (atmospheric pressure) of about 14.7 psi but this doesn’t seem to bother anyone as the bodily fluids are constantly pushing outwards with the same force but if one swims down into the ocean a few feet below the surface one can notice the difference, there is increased pressure on the eardrum, this is due to an increase in hydrostatic pressure.
You're designing a manned submersible to withstand the pressure of seawater at the bottom of the Marianna Trench, which is one of the deepest parts of the earth's oceans. The bottom of the Trench is at a depth of 10,900 m.
1) What is the gauge pressure at this depth?
2) What is the inward force on a circular glass window 6.0 cm in diameter due to the water outside?
3) if the internal pressure is 1atm, what outward force does this produce on the window?
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