At $t=0s$ a small "upward" $($positive $y)$ pulse centered at $x=6\mathrm{.}0m$ is moving to the right on a string with fixed ends at $x=0\mathrm{.}0m$ and $x=14\mathrm{.}0$ m $.$ The wave speed on the string is $4\mathrm{.}5\frac{m}{s}.$

Part A

At what time will the string next have the same appearance that it did at $t=0s?$

Express your answer in seconds.