w-- Determine the energy the waves transports per unit time per unit area as the Poyting vector(坡印亭 向量) 5= 1 ExB=E×H 40 Which is w*c,the intensity of the wavesDetermine the energy the waves transports per unit time per unit area as the Poyting vector（坡印亭 向量）. S E B E H          0 1  Which is w*c, the intensity of the waves