Question

An electromagnetic plane wave has an electric field that isparallel to the y axis, and has a Poynting vector given by (x,t) =(190 W/m2) cos2(kx - ?t) where x is in meters, k = 12.0 rad/m, ? =3.60 109 rad/s, and t is in seconds.
(a) What is the direction of propagation of the wave?
1 Direction +x
(b) Find the wavelength and the frequency of the wave.
? = 0.52 m
f = 573 MHz

(c) Find the electric and magnetic fields of the wave as functionsof x and t. (Use the following as necessary: x and t. To avoidrounding issue, enter the value for k and ? to two significantfigures.)
E(x,t) = ____ V/m
B(x,t) = ______ nT

I only need part C