...#tex2html_wrap_inline1626#
¹

Tension is the magnitude of the force due to stretching the string

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

... units²

If $x$ is in meters and sound velocity $c$ is in meters per second, $x/c$ is in seconds and the spatial variable $x$ cancels out.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

... waves³

Recall, transverse and longitudinal waves are waves in which the partical displacement is perpendicular and parallel, respectively, to the direction of the traveling wave.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.