What is the air pressure (in bar) at a height of 75 m, if the ground...
What is the air pressure (in bar) at a height of 75 m, if the ground level is already 1987 m above sea level? (answer to three decimal places in bars)
Homework Answers
here,
as we know
pressure decreases with increasing altitude
height , h = 75 m
h2 = 1987 m
density of air , p = 1 kg/m^3
the air pressure at this height , P = P0 - p * g * ( h1 + h2)
P = 101325 - 1 * ( 1987 + 75) * 9.81
P = 8.11 * 10^4 Pa = 0.81 bar
the air pressure is 0.81 bar
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