you mean resonance of smelling
a certain smell has a level of resonance or oscillation that in turn creates a resonance or oscillation in your nose antennas. i dont know exactly whatever im liking this discussion
if sound travels 700 mph thats crazy fast and yes loudness does matter sound wont travel in a noticible range if not loud enough meaning sound will go farther the louder. a low sound will dissapate because there is no strenth
Depends on what you mean by low. Elephants for instance can make sounds at frequencies lower than humans can hear. But other elephants in the area can hear. Sometimes elephants in other compartments, separated by walls of concrete can hear these sounds.
It's been well known that cats and dogs can feel and even possible hear the vibrations of an earthquake before it happens.
A bullet can go as fast as the speed of sound. In 1947 The Bell X-1 became the first plane to go faster than the speed of sound. Now, of course it had more power or strength as you put it, than a bullet.