Two speakers, one directly behind the other, are each generating a 441-Hz sound wave. What is the smallest separation distance between the speakers that will produce destructive interference at a listener standing in front of them? Take the speed of sound to be 341 m/s.

Explanation:

Given

Two speaker with frequency of

Listener is standing in front of them

For destructive interference of sound waves i.e. when two waves with opposite signs of amplitude combines give destructive interference

for destructive interference path length difference is

where

for

Smallest separation is

i don't know that i agree with that but what's the question ?

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.