Your friend is firing a gun, and you want to be a safe distance away, so you walk away until there are 1.2 seconds between the time you see the gunfire, and the time you hear it.  You think this still might not be safe enough, so you back up more until the loudness decreases by 5.6 dB.  How long does it take the sound from the gunshot to reach you now?

Answer rating: 100% (QA)

To solve this problem we can use the speed of sound in air which is approximately 343 meters per sec... View the full answer