Why do the molecules of gases that make up the atmosphere, moving in all directions, do not leave the Earth?
| May 28, 2020 | Education
In order for the molecules of gases that make up the atmosphere to leave the Earth, they need to have a very high speed (at least 11.2 km / s) – this is the so-called second cosmic velocity. The speed of most molecules of the Earth’s air envelope is much lower than this speed, so they are “tied” to the earth.
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