4 ms·
See also ε_0 [0]. 1/sqrt(ε_0*μ_0) = c, the speed of light [0]: https://en.wikipedia.org/wiki/Vacuum_permittivity https://en.wikipedia.org/wiki/Vacuum_permittiv
by lapetitejort 2y ago
See also ε_0 [0]. 1/sqrt(ε_0*μ_0) = c, the speed of light
[0]: https://en.wikipedia.org/wiki/Vacuum_permittivity https://en.wikipedia.org/wiki/Vacuum_permittivity