humming bird
it was ba
The displacement of the person pacing back and forth travels 5 west 7m west is usually East.
It is simply a piston compressor.
* Linear-travels in straight lines * Oscillating-back and forth around a point * Reciprocating-back and forth * Rotary-in a circle
a compressional wave
Longitudinal Wave
It is a rarefaction.
Compressional Waves
A longitudinal wave, like sound.
Compression waves (as opposed to transverse waves).
A longitudinal wave, like sound.
Transverse wave, i believe