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Khan Academy (English - US curriculum)
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Khan Academy (English - US curriculum)
Science & Engineering
Physics
Oscillations and mechanical waves
The Doppler effect
The Doppler effect
Doppler effect introduction
Doppler effect formula for observed frequency
Doppler effect formula when source is moving away
When the source and the wave move at the same velocity
Doppler effect for a moving observer
Doppler effect: reflection off a moving object
