The earth's atmospheric pressure, P, in terms of height above sea level is often modeled by an exponential decay function. The pressure at sea level is 1013 millibars and the pressure decreases by 14% for every kilometer above sea level. (a) What is the atmospheric pressure at 55 km? 0.4587 millibars (b) Estimate the altitude h at which the atmospheric pressure equals 650 millibars. 3.1693 km.

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