Answer :

gauge pressure does a submarine feel at the bottom of the deepest part of the ocean, the Marianas trench (measuring a total of 11,000 m) is [tex]=1030 \times 9.8 \times 11000=111034000 \mathrm{~Pa}[/tex]

What is gauge pressure?

The pressure measured in relation to the surrounding atmospheric pressure is known as gauge pressure. A diaphragm sensor can be used to measure gauge pressure, with one side of the diaphragm exposed to the pressure medium that has to be measured and the other exposed to the surrounding atmospheric pressure.

Given that,

depth [tex]$h=11000 \mathrm{~m}$[/tex]

density of sea water [tex]$\rho \approx 1030 \mathrm{~kg} / \mathrm{m}^3$[/tex]

Now the gauge pressure feel by Submarine at the bottom of the deepest part of the ocean is given by

[tex]\begin{aligned}P_g & =\rho g h \\& =1030 \times 9.8 \times 11000=111034000 \mathrm{~Pa}\end{aligned}[/tex]

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