At what altitude does the plane fly if the atmospheric pressure at the Earth’s surface was 750 mm Hg, and overboard 450 mm Hg?
In the troposphere, with an increase in altitude for each kilometer, atmospheric pressure decreases by 100 mm Hg. st. / km
1) Let’s find the difference in atmospheric pressure at the surface of the earth and outside the plane.
750 mm Hg Art. – 450 mm Hg Art. = 300 mm Hg. Art.
2) Find out at what altitude the plane is flying.
To do this, we divide the difference in atmospheric pressure by the pressure drop per kilometer:
300 mmHg Art. / 100 mm Hg. st. / km = 3 km
Answer: 3 km
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