A light beam traveling in the negative z direction has a magnetic field B=(3.02x10-9T)x + (-5.28x10-9T)y at a given instant of time. The electric field in the beam has a magnitude of 1.82 N/C at the same time.
1. Write the E (electric field) in terms of unit vectors.
2. Does the electric field at this time have a z component that is positive, negative, or zero? Describe