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Physics · L3 · The Doppler Effect: Why a Passing Siren Changes Pitch · flowchart

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by @openstemUpdated Physics
🚨 Sound source in motionMoving toward or away from the observer?Sound waves bunch up ahead of the sourceSound waves stretch out behind the sourceNo wavelength change👂 Observer hears a HIGHER pitch than f_src👂 Observer hears a LOWER pitch than f_srcObserver hears the true frequency f_srcTowardAwayNeither, stationary

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