A certain transverse wave is described by

y$($x$,$t$)=$Bcos$[2$$($xL$$t$)](,)=$cos$[2()],$

where B$=6\mathrm{.}80$ mmmm$,$ L$=30\mathrm{.}0$ cmcm$,$ and $=3\mathrm{.}40102$ ss$.$

Part A

Determine the wave's amplitude.

Express your answer in meters.