Physics, 13.12.2019 04:31, liltweetypie08ovdod4

Residents of hawaii are warned of the approach of a tsunami by sirens mounted on the tops of towers. suppose a siren produces a sound that has an intensity level of 120 db at a distance of 2 m. treating the siren as a point source of sound, and ignoring reflections and absorption,

a. what is the sound intensity level heard by an observer at a distance of 12 m

b. what is the sound intensity level heard by an observer at a distance of 21 m?

c. how far away can the siren be heard? (i = threshold of hearing)

Answers: 2

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Residents of hawaii are warned of the approach of a tsunami by sirens mounted on the tops of towers....