A certain transverse wave is described by

$y(x,t)=$Bcos$[2(\frac{x}{L}-\frac{t}{})]$

where $B=6\mathrm{.}20mm,L=26\mathrm{.}0cm,$ and $=3\mathrm{.}20{10}^{-2}s.$

Part A

Determine the wave's amplitude.

PS: On your Calculation Paper write clearly and legibly your step$-$by$-$step calculations or write in will count as zero points even if you submitted the correct answer in Mastering.

Express your answer in meters.