If air pressure is reduced by one- half for every five- kilometer increase in altitude, what would be the air pressure at a height of 25 kilometers as a fraction of sea- level air pressure?

Question

Quizplus · Accepted Answer

If air pressure is reduced by one-half for every five-kilometer increase in altitude, then at 25 kilometers, the air pressure will be reduced by:
(1/2) x (1/2) x (1/2) x (1/2) x (1/2) = 1/32
Therefore, the air pressure at a height of 25 kilometers would be 1/32 of sea-level air pressure.

If Air Pressure Is Reduced by One- Half for Every