Weegy: The change in pitch of a trains horn as it passes while you are standing still can be explained by the Doppler effect.
User: rarefaction occurs only in what type of wave
Weegy: Rarefaction occurs only in a longitudinal wave.
User: Through which of the following mediums is the velocity of a sound wave the greatest? Lead, water, air, steel
Weegy: Through Steel the velocity of sound wave is the greatest.
User: What does a red opaque object to
Weegy: A red opaque object reflects red light only.
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