At this stage we assume that the medium is at rest which implies that the mean velocity is zero, i. e..
At this stage we assume that the medium is at rest, i. e.,.
0.006 seconds.
At this stage we assume that the medium is at rest which implies that the mean velocity is zero, i. e..
At this stage we assume that the medium is at rest, i. e.,.
0.006 seconds.