1. The problem statement, all variables and given/known data Find the electric and magnetic field amplitudes in an electromagnetic wave that has an average energy density of 3.0 J/m3. 2. Relevant equations u=1/2 eo E^2 + 1/(2uo) B^2 u=eo E^2 u=B^2 /uo 3. The attempt at a solution I tried using these equations, but I wasn't getting the right answer. Do I have to change the units or am I just using the wrong equations?