Question

How much pressure (absolute) must a submarine withstand at a depth of 120.0 m in the ocean? Group of answer choices a. 1200 N/m2 b. 1310 N/m2 c. 1200 kPa d. 1310 kPa

Answer 1

The total pressure the submarine must withstand is 1301 kPa.

What is pressure?

Pressure refers to the force exerted by one object on another. In this case, the force exerted by the water on the submarine. This factor is often measured in kilopascals or kPa.

How to calculate the absolute pressure?

To calculate the absolute pressure you will need to use the following formula:

• the pressure exerted by the atmosphere + pressure exerted by water.

The pressure exerted by the atmosphere:

• At 0 meters above sea level, the pressure is 1atm or 101 kPa.

The pressure exerted by the water:

• The pressure increases by 100 kPa for every 10 meters.

• 120 meters / 10 meters = 12 x 101kPa = 1200 kPa

Finally, add the results

• 1200 kPa + 101 kPa= 1301 kPa

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