Answer A-C

The figure to the right shows a plane electromagnetic sinusoidal wave propagating in the x direction through vacuum. Suppose the frequency of the wave is 5 kHz and the magnetic field vibrates in the xz plane with an amplitude of 3 UT. The figure shows the electric and magnetic fields at t = 0, with the magnetic field = Z 0 at the origin. a) Calculate the wavelength of the wave. b) What is the maximum magnitude of the electric field? c) At t = 0, what is the electric field (magnitude and direction) at (x,y,z) = (40, 60, 90) km? Explain/show your work