[westurner]

Newtonian gravity (classical mechanics).

Two-body gravitational attraction is observed to be an inverse square power law; gravitational attraction decreases with the square of the distance.

g, the gravitational constant of Earth, is observed to be exponential; 9.8 m/s^2.

Atmospheric pressure: https://en.wikipedia.org/wiki/Atmospheric_pressure#:~:text=P... :

> Pressure (P), mass (m), and acceleration due to gravity (g) are related by P = F/A = (m*g)/A, where A is the surface area. Atmospheric pressure is thus proportional to the weight per unit area of the atmospheric mass above that location.

[westurner]

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