Constants: Difference between revisions
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| Speed of light | | Speed of light | ||
| | | <math>c</math> | ||
| <math> 3 \times 10^8</math> | | <math> 3 \times 10^8</math> | ||
| <math> m/s </math> | | <math> m/s </math> | ||
|- | |- | ||
| Gravitational Constant | | Gravitational Constant | ||
| | | <math>G</math> | ||
| <math> 6.7 \times 10^{-11}</math> | | <math> 6.7 \times 10^{-11}</math> | ||
| <math> N \cdot m^2 / kg^2</math> | | <math> N \cdot m^2 / kg^2</math> | ||
|- | |- | ||
| Electron Mass | | Electron Mass | ||
| | | <math>m_e</math> | ||
| <math> 9 \times 10^{-31}</math> | | <math> 9 \times 10^{-31}</math> | ||
| <math> kg</math> | | <math> kg</math> | ||
|- | |- | ||
| Proton Mass | | Proton Mass | ||
| | | <math>m_p</math> | ||
| <math> 1.7 \times 10^{-27}</math> | | <math> 1.7 \times 10^{-27}</math> | ||
| <math> kg</math> | | <math> kg</math> | ||
|- | |- | ||
| Neutron Mass | | Neutron Mass | ||
| | | <math>m_n</math> | ||
| <math> 1.7 \times 10^{-27}</math> | | <math> 1.7 \times 10^{-27}</math> | ||
| <math> kg</math> | | <math> kg</math> | ||
Latest revision as of 12:51, 20 October 2015
Table of Constants
| Constant | Symbol | Approximate Value | Units |
|---|---|---|---|
| Speed of light | [math]\displaystyle{ c }[/math] | [math]\displaystyle{ 3 \times 10^8 }[/math] | [math]\displaystyle{ m/s }[/math] |
| Gravitational Constant | [math]\displaystyle{ G }[/math] | [math]\displaystyle{ 6.7 \times 10^{-11} }[/math] | [math]\displaystyle{ N \cdot m^2 / kg^2 }[/math] |
| Electron Mass | [math]\displaystyle{ m_e }[/math] | [math]\displaystyle{ 9 \times 10^{-31} }[/math] | [math]\displaystyle{ kg }[/math] |
| Proton Mass | [math]\displaystyle{ m_p }[/math] | [math]\displaystyle{ 1.7 \times 10^{-27} }[/math] | [math]\displaystyle{ kg }[/math] |
| Neutron Mass | [math]\displaystyle{ m_n }[/math] | [math]\displaystyle{ 1.7 \times 10^{-27} }[/math] | [math]\displaystyle{ kg }[/math] |
| Electric Constant | [math]\displaystyle{ \frac{1}{4\pi\epsilon_0} }[/math] | [math]\displaystyle{ 9 \times 10^9 }[/math] | [math]\displaystyle{ N \cdot m^2 / C^2 }[/math] |
| Permitivity of Free Space | [math]\displaystyle{ \epsilon_0 }[/math] | [math]\displaystyle{ 8.85 \times 10^{-12} }[/math] | [math]\displaystyle{ (N \cdot m^2 / C^2)^{-1} }[/math] |
| Magnetic Constant | [math]\displaystyle{ \frac{\mu_0}{4\pi} }[/math] | [math]\displaystyle{ 1 \times 10^{-7} }[/math] | [math]\displaystyle{ T\cdot m/A }[/math] |
| Vacuum Permeability | [math]\displaystyle{ \mu_0 }[/math] | [math]\displaystyle{ 4\pi \times 10^{-7} }[/math] | [math]\displaystyle{ T\cdot m/A }[/math] |
| Proton Charge | [math]\displaystyle{ e }[/math] | [math]\displaystyle{ 1.6 \times 10^{-19} }[/math] | [math]\displaystyle{ C }[/math] |
| Electron Volt | [math]\displaystyle{ eV }[/math] | [math]\displaystyle{ 1.6 \times 10^{-19} }[/math] | [math]\displaystyle{ J }[/math] |
| Avogadro's Number | [math]\displaystyle{ N_A }[/math] | [math]\displaystyle{ 6.02 \times 10^{23} }[/math] | [math]\displaystyle{ molecules/mole }[/math] |
| Atomic Radius (approximate) | [math]\displaystyle{ R_a }[/math] | [math]\displaystyle{ 1 \times 10^{-10} }[/math] | [math]\displaystyle{ m }[/math] |
| Proton Radius | [math]\displaystyle{ R_p }[/math] | [math]\displaystyle{ 1 \times 10^{-15} }[/math] | [math]\displaystyle{ m }[/math] |
| E to ionize air | [math]\displaystyle{ E_{ionize} }[/math] | [math]\displaystyle{ 3 \times 10^{6} }[/math] | [math]\displaystyle{ V/m }[/math] |
| Earth's Magnetic Field | [math]\displaystyle{ B_{Earth} }[/math] | [math]\displaystyle{ 2 \times 10^{-5} }[/math] | [math]\displaystyle{ T }[/math] |