Waves

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The Doppler effect is the change in observed frequency due to

When two waves are "in phase" what type of interference are they experiencing?

When two or more waves are at the same place at the same time, the resulting effect is called

If a star is experiencing red shift, it is moving

As a sound source (such as an ambulance) moves toward you, the pitch of the sound

When the crest of one wave overlaps the trough of another, which type of interference occurs?

At the antinodes of a standing wave, what type of interference is occuring?

Standing waves occur because of