Mathematical and Physical Journal
for High Schools
Issued by the MATFUND Foundation
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# Problem P. 4380. (November 2011)

P. 4380. At least what is the mass of the atmosphere around the Earth, if the mean radius of the Earth is 6370 km, and the average air pressure at the surface of the Earth is 100 kPa?

(3 pont)

Deadline expired on December 12, 2011.

Sorry, the solution is available only in Hungarian. Google translation

Megoldás. $\displaystyle 4\pi R^2\, p_{0}/g\approx 5{,}2\cdot 10^{18}$ kg.

### Statistics:

 263 students sent a solution. 3 points: 196 students. 2 points: 49 students. 1 point: 15 students. 0 point: 1 student. Unfair, not evaluated: 2 solutions.

Problems in Physics of KöMaL, November 2011