Two sinusoidal waves, which are identical except for a phase shift, travel along in the same direction. The wave equation of the resultant wave is

yR$($x$,$ t$)=(0\mathrm{.}38$ cm$)$sin

$(6\mathrm{.}39$ m$1)$x $(1\mathrm{.}54$ s$1)$t $+$

$4$

$.$

What are the period $($in s$),$ wavelength $($in m$),$ amplitude $($in cm$),$ and phase shift $($in rad$)$ of the individual waves?