What?
Im kinda looking for the formula that shows the relation between an objects speed and the distance it can be heard if it were emitting a steady sound. I understand It can be heard in a circular direction, but the notion that it is compressed so greatly at such slow speeds is odd to me.
I am currently enrolled in a driver / operator class for my fire department and a statement that was written in our textbooks has been bothering me. " If a fire apparatus is traveling at 40 miles per hour the siren can be heard at a distance of 300ft. However, if a fire apparatus is traveling at...