Suppose that a public address system emits sound uniformly in all directions and that there are no reflections. The intensity at a location 26 m away from the sound source is 3.2 10-4 W/m2. What is the intensity at a spot that is 74 m away?
the 3.2 10-4 w/m^2 means 3.2 times 10^-4
- Anonymous1 month ago
I = 3.2x10^-4 * (26/74)² = 3.95x10^-5 W/m^2