Question 9 [2 pts] Suppose a transcontinental flight from San Francisco to New Y

Question

Question 9 [2 pts] Suppose a transcontinental flight from San Francisco to New York is flying at 10 km above the surface. On a dry summer day when the surface temperature is 30°C, what would be the approximate temperature outside the aircraft cabin? Describe briefly how you estimate the answer. Question 10: [2 pts] Earth's tallest mountain, Mount Everest, is 8,848 m tall. Assume that air density and pressure decrease at the same rate with altitude. What would be the air density at the summit, expressed as a percentage of the air density at the surface?

Explanation / Answer

Supose a transcontinental flight from san francico to new york is flying at 10 km above the surface. On a dry summer day when the surface temperature is 300C, what would be the appproximate temperature outside the aircraft cabin?

ANSWER

STEP 1

Given that----

transcontinental flight from san francico to new york is flying at 10 km above the surface

Therefore hight (H)= 10km

Surface temperature (TS)=300C

We have to find out the temperature outside the aircraft cabin .

STEP2

Now we know that the temperature in the troposphere drop an average of 6.5-degree centigrade per km [in a dry environment ]

Now let T be the temperature at the 10km height from the surface.

Then

                T=TS – (6.5*10)

                =( 30 -65)

                   = -350C

Therefore the required answer is    -350C

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