==> Their sum is a wave with amplitude greater than either of
the original waves . . . Constructive interference
==> Their sum is a wave with amplitude less than either of
the original waves . . . Destructive interference
Answer:
one free advice don't believe all this free advices give din brainly ok
If you know the distance and the time I travelled that distance.
You just have to divide the time from the distance to get velocity
V =d
_
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