A plane monochromatic electromagnetic wave with wavelength $=2\mathrm{.}7cm,$ propagates through a vacuum. Its magnetic field is described by

vec$(B)=(B_x(hat(i))+B_y(hat(j)))cos(kz+t)$

where $B_x=2\mathrm{.}9{10}^{-6}T,B_y=3\mathrm{.}3{10}^{-6}T,$ and i $-$hat and j $-$hat are the unit vectors in the $+$x and $+$y directions, respectively.

What is f$,$ the frequency of this wave?

$$

GHz

$$

What is I, the intensity of this wave?

$\frac{V}{m^2}$

$$

What is $S_z,$ the $z-$component of the Poynting vector at

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