Determine the atmospheric pressure at the top of a hill 40 m high if the atmospheric pressure at the bottom is 50 mm Hg.

With a rise of 10.5 meters, the pressure decreases by 1 mm Hg. Art.
The pressure when lifting 40 m will change by 3.8 mm Hg. Art.
50-3.8 = 46.2 (mmHg)



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