A plаnаr electrоmаgnetic wave is prоpagating in the +x directiоn. At a certain point P and at a given instant, the electric field of the wave is given by = (0.082 V/m) . What is the Poynting vector at the point P at that instant? (c = 3.0 × 108 m/s, μ0 = 4π × 10-7 T • m/A,