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An ambulance driving 50.0 m/s emits a sound wave with a wavelength of 80.0 centimeters. As...

An ambulance driving 50.0 m/s emits a sound wave with a wavelength of 80.0 centimeters. As it drives toward a hospital, which of the following is the only possible frequency heard by the medical staff who are standing at the entrance? Speed of sound is 343 m/s.

62.5 Hz 73.2 Hz 429 Hz 502 Hz

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