The wave function for a certain electromagnetic wave is given by E = -(2500V/m)cos(9.973x10^6z - 2.992x10^15t)i where z is in meters and t in seconds.
a) find the wavelength, frequency, and velocity of the wave.
b) In what direction is the wave travelng?
c) Determin the magnitude and direction of the corresponding magnetic field.
d) what is the intensity of the electromagnetic wave?