Physical Constants: elementary_charge to gravitational_acceleration
Physical constants — fundamental constants of nature (speed of light, gravitational constant, Boltzmann, Planck, etc.) with SI and imperial values
| constant name | category | description | symbol | uncertainty | unit SI | unit imperial | value SI | value imperial |
|---|---|---|---|---|---|---|---|---|
| elementary_charge | electromagnetic | Elementary electric charge | e | exact (defined) | C | C | 0 | 0 |
| faraday_constant | electromagnetic | Faraday constant | F | exact (defined) | C/mol | C/mol | 96,485.33212 | 96,485.33212 |
| gas_constant_helium | thermodynamics | Specific gas constant for helium (He) | R_He | 0.001 | J/(kg*K) | ft*lbf/(lbm*R) | 2,077.1 | 386.04 |
| gas_constant_oxygen | thermodynamics | Specific gas constant for oxygen (O2) | R_O2 | 0.001 | J/(kg*K) | ft*lbf/(lbm*R) | 259.84 | 48.29 |
| gravitational_acceleration | mechanics | Standard acceleration due to gravity | g | exact (defined) | m/s^2 | ft/s^2 | 9.80665 | 32.174 |
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