As measured by NASAs Viking landers, the atmosphere of Mars, where g < 3.71 m/s 2 , is

Chapter 2, Problem p2.25

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As measured by NASAs Viking landers, the atmosphere of Mars, where g < 3.71 m/s 2 , is almost entirely carbon dioxide, and the surface pressure averages 700 Pa. The temperature is cold and drops off exponentially: T < To e 2Cz , where C 5 1.3E-5 m 21 and To = 250 K. For example, at 20,000 m altitude, T < 193 K. ( a ) Find an analytic formula for the variation of pressure with altitude. ( b ) Find the altitude where pressure on Mars has dropped to 1 pascal.

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