A transverse wave on a wire is given by D$($x$,$t$)=0\mathrm{.}015$sin$(32$x$1344$t$)$D$($x$,$t$)=0\mathrm{.}015$sin$(32$x$1344$t$)$where DD and xx are in meters and tt is in seconds.

Part A

Find an expression for a wave with the same amplitude, wavelength, and frequency but traveling in the opposite direction. Part B What is the speed of either wave?