The area of a sound wave where particles are less dense is called a rarefaction. It is the diminution in the density of a sound wave.
The crest.
The number of sound waves per unit time is called the frequency of the wave.
The height of a wave is called the amplitude. The top of the wave is called the crest. The bottom of the wave is called the trough.The frequency of the wave is the number of wave crests passing a given point in a specific amount of time. Frequency is measured in hertz.
The incoming wave is called the incident wave.
A stretched-out area of a wave is called a rarefaction.
Curls
The area of a sound wave where particles are less dense is called a rarefaction. It is the diminution in the density of a sound wave.
The area under the stomach is called the hypogastrium or the lower abdomen.
beach.
Crest, and the least dense the Trough
A seismic wave. If the earthquake occurs under water, the seismic waves can produce waves in the water called tsunami.
A protectorate or a colony.
It is called ONE = 1.
it is called a seismic wave
The crest.
a princedom