The electric field of an electromagnetic wave traveling in vacuum is described by the following wave function: e⃗ =(5.00v/m)cos[kx−(6.00×109s−1)t+0.4 0]jˆe→=(5.00v/m)cos[kx−(6.00×109s−1 )t+0.40]j^ where k is the wavenumber in rad/m, x is in m, t is in s. find the following ) amplitude.(b) frequency.(c) wavelength.(d) the direction of the travel of the wave.(e) the associated magnetic field wave.