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The greatest ocean depths on the Earth are found in the Marianas Trench near the Philippines. Calculate the pressure due to the ocean at the bottom of this trench, given its depth is 11.0 $\mathrm{km}$ and assuming the density of seawater is constant all the way down.

$P_{\mathrm{W}}=1.10 \times 10^{8} \mathrm{N} \mathrm{m}^{-2}=1.10 \times 10^{8} \mathrm{Pa}$

Physics 101 Mechanics

Chapter 11

Fluid Statics

Fluid Mechanics

Rutgers, The State University of New Jersey

University of Michigan - Ann Arbor

University of Washington

University of Sheffield

Lectures

03:45

In physics, a fluid is a substance that continually deforms (flows) under an applied shear stress. Fluids are a subset of the phases of matter and include liquids, gases, plasmas and, to some extent, plastic solids.

09:49

A fluid is a substance that continually deforms (flows) under an applied shear stress. Fluids are a subset of the phases of matter and include liquids, gases and plasmas. Fluids display properties such as flow, pressure, and tension, which can be described with a fluid model. For example, liquids form a surface which exerts a force on other objects in contact with it, and is the basis for the forces of capillarity and cohesion. Fluids are a continuum (or "continuous" in some sense) which means that they cannot be strictly separated into separate pieces. However, there are theoretical limits to the divisibility of fluids. Fluids are in contrast to solids, which are able to sustain a shear stress with no tendency to continue deforming.

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we're told that the greatest ocean depths on earth are found in the Marianas Trench near the Philippines. One account. The pressure did that the ocean at the bottom of this trench, given its step, is 11 kilometers and assuming the density of seawater is constant all the way down. Well, the density of seawater we can look up is about 1024 kilograms per meter cubed. That's a little greater than the density off a fresh water because of the minerals dissolved in it. The pressure you can use from our pressure formula is the density times, gravity times the depth. And so we have 1024 kilograms per meter cube, 9.8 meters per second, squared 11 times tender that 30 meters. Plugging that into a calculator. We get 1.1 times, 10 to the eighth. Pascal's

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