Question #295576

Atmospheric pressure P

 in pounds per square inch is represented by the formula P=14.7e^−0.21x

where x is the number of miles above sea level. To the nearest foot, how high is the peak of a mountain with an atmospheric pressure of 8.163

pounds per square inch? Hint: There are 5280 feet in a mile.


1
Expert's answer
2022-02-10T04:13:10-0500

We have to use the equation P=14.7e^−0.21x which is equivalent to:


P=14.7exp(0.21x)x=10.21ln(14.7P)=10.21ln(14.78.163) x=2.8011miles(5280ft1mile)=14789.8ftP=14.7\exp{(−0.21x)} \\ \therefore x = \frac{1}{0.21}\ln{(\frac{14.7}{P})}= \frac{1}{0.21}\ln{(\frac{14.7}{8.163})} \\ \text{ } \\ x=2.8011\,miles\, (\frac{5280\,ft}{1\,mile})=14789.8\,ft


In conclusion, the peak of the mountain has an approximate height of 14790 ft.


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