The figure below shows a plane electromagnetic sinusoidal wave propagating in the x direction. Suppose the wavelength is 52.0 m and the electric field vibrates in the xy plane with an amplitude of 20.0 V/m. (a) Calculate the frequency of the wave. MHz (b) Calculate the magnetic field Bwhen the electric field has its maximum value in the negative y direction. magnitude 66.6 nT direction -z (c) Write an expression for Bwith the correct unit vector, with numerical values for Bmax k, and w, and with its magnitude in the form B = Bmax cos (kx – wt). (Assume B is measured in nT, x is measured in m and t in s.) = - 66 Cos 0.120 3.14 < 107) You appear to be calculating this correctly with your incorrect result for the wave frequency from part (a). x 10'

The figure below shows a plane electromagnetic sinusoidal wave propagating in the x direction. Suppose the wavelength is 52.0 m and the electric field vibrates in the xy plane with an amplitude of 20.0 V/m. (a) Calculate the frequency of the wave. MHz (b) Calculate the magnetic field Bwhen the electric field has its maximum value in the negative y direction. magnitude 66.6 nT direction -z (c) Write an expression for Bwith the correct unit vector, with numerical values for Bmax k, and w, and with its magnitude in the form B = Bmax cos (kx – wt). (Assume B is measured in nT, x is measured in m and t in s.) = - 66 Cos 0.120 3.14 < 107) You appear to be calculating this correctly with your incorrect result for the wave frequency from part (a). x 10'