The density of atmosphere at sea level is 1.29

Asked by admin @ 17/08/2021 in Physics viewed by 300 People

The density of the atmosphere at sea level is 1.29kg/m3 and g=9.8m/s2 .assume that both do not change with altitude .how high should the atmosphere extend?

Answered by admin @ 17/08/2021

Use formula, $P=\rho gh$

where P is atmospheric pressure,

$\rho$ is density of atmosphere.

g is acceleration due to gravity.

here given, $\rho$ = 1.29 kg/m³ ,P = 1.013 × 10^5 N/m² and g = 9.8 m/s²

h = P/ $\rho$ g = 1.013 × 10^5/(1.29 × 9.8)

≈ 8013 km

hence, atmosphere extended 8013km high from the sea level.

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