Verkkoa sound of thundera.
Er ray bradbury the sign on the wall seemed to quaver under a film of sl.
Eckels felt his eyelids blink over his stare, and the sign.
Verkkofrequency refers to how many times a wave oscillates, or cycles, per second.
In terms of sound, frequency determines the pitch of the sound you hear.
Verkkothe speed of sound can change when sound travels from one medium to another, but the frequency usually remains the same.
This is similar to the frequency of a wave.