Two plane waves are propagating in the y- z plane in free space (see the diagram to the right). The arrows point in the direction of travel. Wavefront 1 30 30 Wavefront 2 a) Write the equations that describe the electric fields of each of the two waves. Assume each wave has an amplitude of Eo. b) Find the corresponding H-Fields. c) Calculate the total electric field at point A after the two waves meet. Comment on the standing wave components of the field. d) Find the Poynting vector at point A.