Which would describe a situation in which the Doppler effect is occurring? Sheila notices an increase in volume as an object approaches her. Brad hears an object increase in loudness as it is vibrated at its natural frequency. Judy notices an increase in intensity as an object is vibrated at its natural frequency. Damian hears a change in pitch as an object moves past him.
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Which would describe a situation in which the Doppler effect is occurring? Sheila notices an increas...
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