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A plane monochromatic electromagnetic wave with wavelength λ = 4.9 cm, propagates through a vacuum. Its...

A plane monochromatic electromagnetic wave with wavelength λ = 4.9 cm, propagates through a vacuum. Its magnetic field is described by B⃗ =(Bxi^+Byj^)cos(kz+ωt) where Bx = 3.8 X 10-6 T, By = 3.2 X 10-6 T, and i-hat and j-hat are the unit vectors in the +x and +y directions, respectively.

1) What is f, the frequency of this wave?

2) What is I, the intensity of this wave?

3) What is Sz, the z-component of the Poynting vector at (x = 0, y = 0, z = 0) at t = 0?

4) What is Ex, the x-component of the electric field at (x = 0, y = 0, z = 0) at t = 0?

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