Physics

Problem

Taking

μ_0 = 4π \times 10^{-7}\,\text{N A}^{-2}

and

ε_0 = 8.854 \times 10^{-12}\,\text{C}^2 \text{N}^{-1} \text{m}^{-2}

, calculate the speed of electromagnetic waves in vacuum.