At the bottom of the mine, the height of the mercury column in the mercury barometer is 80 cm. Find the air pressure in the mine.

univerkov | April 5, 2021 | education

h = 80 cm = 0.8 m.
ρ = 135000 kg / m ^ 3.
g = 9.8 m / s ^ 3.
Rathm -?
Atmospheric pressure Ratm is equal to the hydrostatic pressure P of mercury 0.8 m high.
Rathm = R.
Hydrostatic pressure is determined by the formula: P = ρ * g * h.
Rathm = ρ * g * h.
Ratm = 135000 kg / m ^ 3 * 9.8 m / s ^ 3 * 0.8 m = 1058400 Pa = 1058.4 * 10 ^ 3 Pa = 1058.4 kPa.
Answer: Rathm = 1058.4 kPa.

One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.