The density of air on the Earth decreases almost linearly with height from 1.22kgm-3 at sea level
to 0.74 kgm-3 at an altitude of 5000m.
Atmospheric pressure at the Earth's surface on a particular day is 100000Pa. The value of g
between the Earth's surface and an altitude of 5000 m can be considered to have a constant
value of 9.7ms-2.
What will be the atmospheric pressure at an altitude of 5000m?
the answer is 52000 Pa
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