Time period = time/no. of waves = 6/3 = 2s
Answer:
It is another machine that helps the main machine. Hope that helps!
Explanation:
A wavefront is the long edge that moves, for example, the crest or the trough. Each point on the wavefront emits a semicircular wave that moves at the propagation speed v. These are drawn at a time t later, so that they have moved a distance s = vt.
