This constant appears raised to the negative fourth power on one side of the EFE.
This constant appears raised to the negative fourth power on one side of the EFE. The square of this constant multiplies the time component of the line element for Minkowski space. Velocity squared is divided by the square of this constant in the definition of the (*) Lorentz factor. The index of refraction for a medium is equal to this value in a vacuum divided by this value in the medium. The energy of a particle at rest equals mass times this constant squared according to Einstein. For 10 points, name this constant that represents how fast electromagnetic waves travel in a vacuum.
This constant appears raised to the negative fourth power on one side of the EFE.
speed of light [accept c]