# At the foot of the mountain, at an altitude of 2300 m above sea level, the air pressure is 756 mm

At the foot of the mountain, at an altitude of 2300 m above sea level, the air pressure is 756 mm, and at the top of the mountain, at the same time, it is 720 mm. Determine the relative and absolute height of the mountain?

To solve the problem, we first find the difference in atmospheric pressure at the foot and at the top of the mountain.

To do this, we subtract the pressure at the top from the pressure at the foot.

We get:

756 – 720 = 36 mm Hg

A constant value of the change in pressure by 1 mm Hg occurs with an increase in height by 10.5 meters.

In this case, the relative height of the top will be:

36 * 10.5 = 378 meters.

Find the absolute height.

To do this, add the height of the foot above the ocean surface to the relative height.

2300 + 378 = 2678 meters.

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