In reply to:
Mark, it depends on what the argument is about. If it's about sound waves of those frequencies in air, then the calculation is as Bren described.
At I think 20 celsius, at sea level, under the new moon *insert caveats here*
In reply to:
If it's about electrical signals at those frequencies going along a wire, the calculation would be based on a speed approaching the speed of light(about 186,000 miles per second)rather than the speed of sound, and would be many miles for all audio frequencies.
Thanks for clearing that up, I originally had a paragraph in my message about just that but I couldn't word it without confusing the subject more. You did very well.
Bren R.
