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Standing on your head. (a) When you stand on your head, what is the difference in pressure of the blood in your brain compared with the pressure when you stand on your feet if youare 1.85 m tall? The density of blood is 1060 $\mathrm{kg} / \mathrm{m}^{3}$ . (b) Whateffect does the increased pressure have on the blood vessels in your brain?

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Physics 101 Mechanics

Chapter 13

Fluid Mechanics

Temperature and Heat

Cornell University

University of Washington

Simon Fraser University

Hope College

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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in this problem were asked what change in pressure occurs in someone's head if they stand on their head and were given that they're high is 1.85 meters and the density of blood is 10 60 kilograms per meter cubed. So to get the pressure, we simply use ro gh where rose the density of blood A 10 60. She is the gravitational acceleration at 9.8 years per second squared and H is the 1 25 meters. And the effect that this is gonna have on the blood vessels in the brain is to increase the outward force on the walls of the blood vessels that the experience

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