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The kilopascal is a unit of measure for atmospheric pressure. Suppose the atmospheric air pressure at sea level is about

9898

kilopascals. For every​ 1000-m increase in​ altitude, the pressure decreases about

11.411.4​%.

What is the approximate pressure at an altitude of

40004000

​m?

The pressure at an altitude of

40004000

m is about

 

nothing

kilopascals.

Respuesta :

calculista
we know that

At sea level, the height is 0 and
the pressure is 98 kilopascals

At 1000 ft, the height is 1000 and
the pressure decreases about 11.41%

i(100%-11.41%)/100----> (0.8859)

therefore
1) at 1000 ft--------> the pressure is 98*(0.8859)----------> 86.82 kilopascals
2) at 2000 ft--------> the pressure is 86.82*(0.8859)-------> 76.91 kilopascals
3) at 3000 ft--------> the pressure is 76.91*(0.8859)-------> 68.14 kilopascals
4) at 4000 ft---------> the pressure is 68.14*(0.8859)-------> 60.36 kilopascals


the answer is
The pressure at an altitude of 4000 m is about 60.36 kilopascals

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