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The electric field component of an electromagnetic wave traveling in a vacuum is given by Ey = Eo sin (kx - wt), where E

The electric field component of an electromagnetic wave traveling in a vacuum is given by Ey = Eo sin (kx - wt), where E = 300 V/m and k=107m. What are the frequency of the oscillations (in Hz) and the direction of propagation?

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