What is the atmospheric pressure at the top of a mountain 3 km high, if at the foot it is 750 mm of mercury?

1) We translate the height of the mountain from kilometers to meters.
3 * 1000 = 3000 m.
2) We accept a change in pressure of 1 millimeter with an increase in height by 10 meters.
3) Find the difference in pressure at the top and at the bottom.
3000/10 = 300 mm Hg
4) Find the value of atmospheric pressure at the summit with a height of 3 km.
750 – 300 = 450 mm Hg
Answer: 450 mm Hg.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.