An outside loudspeaker $($considered a small source$)$ emits sound waves with a power output of $100$ W$.($a$)$ Find the intensity $10\mathrm{.}0$ m from the source. $($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$?$