An electromagnetic wave has an electric field given by E

S S $1$y$,$ t$2.$

$1$y$,$ t$2=13\mathrm{.}10*105$ V$>$m$2$kn cos$3$ky $-112\mathrm{.}65*1012$ rad$>$s$2$t$4.($a$)$ In which direction is the wave traveling? $($b$)$ What is the wavelength of the wave? $($c$)$ Write the vector equation for