Question

The density of atmosphere at sea level is 1.29 kg per metre cube assume that it doesn't change with altitude how high would the atmosphere extend

Answer 1

Answer:

Let use the equation of

Pressure=atmospheric pressure+mass density of the fluid ×acceleration due to gravity ×depth

:.P=Pa+pgh

now,

pgh=1.29×9.8×h

h=7989m

h=8km

Explanation:

In reality the density of air decreases with height .so does the value of g.The atmospheric cover extends with decreasing pressure over 100km.

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Answer 2

Answer:

8 km

Explanation:

Given:-

ρ=1.29kg/m ^3

P=1×10 ^5  Pa atmospheric pressure

g=9.8m/s ^2

Use formula,

The pressure, P=ρgh

h=ρg/P

h=1×10^5/1.29 x 9.8

h=7.910

h≈8 km

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