An outside loudspeaker $($considered a small source$)$ emits sound waves with a power output of $108$ W$.($a$)$ Find the intensity $12\mathrm{.}5$ m from the source. W$/$m$2($b$)$ Find the intensity level in decibels at that distance. dB$($c$)$ At what distance would you experience the sound at the threshold of pain, $120$ dB$?$ m