Suppose that the sound intensity level $1\mathrm{.}0$m away from a person talking in a norma conversation is $60$ dB$.$ Would you be able to hear this person from $100$ m away?

$($Assume the sound spreads uniformly in all directions, and the threshold intensity is $10-12$ W$/$m$2.)$ a$)$ What is the intensity of the sound $1\mathrm{.}0$ m away from the speaker? $($Calculate your answer in SI units, and report it in scientific notation.$)$ b$)$ What is the power of the sound emitted by the person? c$)$hat is the intensity of the sound $100$ m away from the speaker? $($Calculate your answer in SI units, and report it in scientific notation.$)$

d$)$ What is the intensity of the sound $100$ m away from the speaker? $($Calculate your answer in SI units, and report it in scientific notation.$)$ e$)$ What is the intensity level of the sound $100$ m away from the speaker? f$)$ So$,$ technically, is the person audible from $100$ m away?

So$,$ technically, is the person audible from $100$ m away?

No$.$ Because the sound intensity is very small.

There is no way to tell without being there.

Yes. Because the sound intensity is above the threshold.

No$.$ Because the decibel level decreased by a significant amount.