2006-08-13 04:39:05 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Physics
Technically, it is infinite. However, the intensity of the sound is inversely proportional to the square of the distance away from the blast-- 1/r^2, so the intensity fades away rapidly. Example. If someone is 1 mile away and another is 2 miles away, the sound pressure intensity for the person at two miles will be only 1/4 of the level that the person 1 mile away hears. If someone is 3, 4, 5...etc. miles away it will be 1/9 1/16 1/25 the sound level of the person 1 mile away.
Imagine a large expanding sphere. That is the way the sound travels and the surface area of the sphere is proportional to r^2 so that's where that r^2 term comes from.
2006-08-13 04:46:11 · answer #1 · answered by cat_lover 4 · 0⤊ 0⤋
Much of the answer depends upon the amount of energy in the initial blast which produces the sound wave. The sound wave from the instant of its propagation begins to spread its energy in a spherical direction according to the inverse square law. Not only is the energy spread out according to this law, some of the energy is absorbed by anything in its path including the air through which it is being propagated. The point where the sound stops would have to be taken as that point where the energy level drops below the minimum detecting level of the most sensitive instrument available for measuring sound,
2006-08-13 11:52:48 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Depends on the size and type of explosive.
2006-08-13 11:45:11 · answer #3 · answered by Tom H 4 · 0⤊ 0⤋
It depends on how powerful the bomb is.
2006-08-13 11:53:07 · answer #4 · answered by Science_Guy 4 · 0⤊ 0⤋
Depends on the size of the explosion, atmospheric conditions and
terrain surrounding explosion..
2006-08-13 11:45:32 · answer #5 · answered by Anonymous · 0⤊ 0⤋
same like any other sound, but it is faster a bit because the initial blow create the wind,
2006-08-13 12:04:43 · answer #6 · answered by Henry W 7 · 0⤊ 0⤋