An electromagnetic wave traveling along z-axis in free space is the resultant of two linearly polarized components: E=4sin(@t-ẞz)a¸ E, = 6sin (@t-ẞz+л/2)a, V/m. Determine: a) The hand of polarization, b) The Poynting vector, Save and V/m and c) The average energy transmitted by the wave in 10 s through a cross sectional area of radius 2.0 m.

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