The kilopascal is a unit of measure for atmospheric pressure. Suppose the atmospheric air pressure at sea level is about 101 kilopascals. For every 1000-m increase in altitude, the pressure decreases about 11.3 %. What is the approximate pressure at an altitude of 2000 m?

The pressure at an altitude of 2000 m is about ___ kilopascals.

The pressure at an altitude of 2000 m is about 79.46 kilopascals.

Step-by-step explanation:

The atmosphered air pressure, for each n 1000m increase in altitude, has the following format:

In which A(0) is the pressure at sea level and r is the decrease rate, as a decimal.

Suppose the atmospheric air pressure at sea level is about 101 kilopascals.

This means that .

For every 1000-m increase in altitude, the pressure decreases about 11.3 %.

This means that

So

What is the approximate pressure at an altitude of 2000 m?

2000/1000 = 2.

So this is A(2).

The pressure at an altitude of 2000 m is about 79.46 kilopascals.

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