E(y,t) =
Eocos(ky-ωt)x
where x is the unit vector in the x direction,
is a solution of your derived equation. In what direction is this
wave propagating?
Suppose the wavelength of the light is 700nm, what is k in rad
nm-1? What is ω in rad/s? If Eo=300V/m, what is the
electric field at time t=3.5fs (femto seconds) and y = 300nm? What
is the force (magnitude and direction) this field exerts on an
electron?
Bonus: What is the corresponding...