An observer standing by the side of a road hears the siren of an ambulance

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An observer standing by the side of a road hears the siren of an ambulance, which is moving away from him. If the actual frequency of the siren is 2,000 Hz​, then the frequency heard by the observer will be
12
Sep
An observer standing by the side of a road hears the siren of an ambulance, which is moving away from him. If the actual frequency of the siren is 2,000 Hz​, then the frequency heard by the observer will be 000 Hz​ An observer standing by the side of a road hears the siren of [...]
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Tags: 000 Hz​ , An observer standing by the side of a road hears the siren of an ambulance , then the frequency heard by the observer will be , which is moving away from him. If the actual frequency of the siren is 2 ,