String $1$ in the figure has linear density $2\mathrm{.}70\frac{g}{m}$ and string $2$ has linear density $3\mathrm{.}20\frac{g}{m}.$ A student sends pulses in both directions by quickly pulling up on the knot, then releasing it$.$ She wants both pulses to reach the ends of the strings simultaneously.

$($Figure $1)$

Part A

What should the string length $L_1$ be$?$

Express your answer with the appropriate units.

Units

Request Answer

Part B

What should the string length $L_2$ be$?$

Express your answer with the appropriate units.

Value

Figure

$1$ of $1$