SERCP$1114\mathrm{.}5.$P$\mathrm{.}011.$

he mating call of a male cicada is among the loudest noises in the insect world, reaching decibel levels of $105$ dB at a distance of $1\mathrm{.}00$ m from the insect.

Calculate the corresponding sound intensity $($in $\frac{W}{m^2}).$

$\frac{W}{m^2}$

Calculate the sound intensity $($in $\frac{W}{m^2})$ at a distance of $15\mathrm{.}6$ m from the insect, assuming the sound propagates as a spherical wave.

$\frac{W}{m^2}$

Calculate the decibel level at a distance of $15\mathrm{.}6$ m from $114$ male cicadas each producing the same sound intensity.

$$ dB