Physics
Weight (poundals) = 32.1752 (ft/s^2) * Mass (pounds)
Work = Force * Distance
Newton's law of gravitation
Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://api.formulasearchengine.com/v1/":): {\displaystyle F = \frac{GmM}{r^2}}
G: a constant (6.67408 × 10-11 m^3 kg^-1 s^-2 or 1.068846 x 10-9 ft3 lb-1 s-2 (is this the latest?) )
m, M: masses of two objects
r: distance between point-particles