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3 years ago

Why are we not crushed by the weight of the atmosphere on our shoulders?

Physics

1 answer:

antiseptic1488 [7]3 years ago

5 0

Answer:

Due to equal pressure in all the direction at a particular level in a fluid medium (Pascal's Law)

Explanation:

We are not crushed by the weight of the atmosphere because atmosphere is a fluid and we are immersed into it. So, according to the Pascal's law the the pressure a each point in a horizontal level is equal in all the direction irrespective of the orientation of a body.

Variation of pressure in term of the height of a fluid medium is given as:

$P=\rho.g.h$

$\rho=$ density of fluid

g = acceleration due to gravity

h = height of the free surface of the fluid from the immersed object.

And atmosphere has very less variation of pressure with change in height as it is a rare medium fluid and so for a human height there is very negligible variation of pressure at the heat of a human with respect to his toe.

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The basic barometer can be used to measure the height of a building. If the barometric readings at the top and the bottom of a b

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Answer:

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Explanation:

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now we will have

$(755 \times 10^{-3})(13.6 \times 10^3)(9.81) = P_{bottom}$

$P_{bottom} = 1.007 \times 10^5 Pa$

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now we have

$(1.007 - 0.974)\times 10^5 = 1.25 (9.81) h$

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3 years ago

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Answer:

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3 years ago