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Mathematics, 16.01.2020 08:31 Tok
Apolice car is parked by the side of a highway and its siren emits a sound measuring 750 hz. as you approach the police car from a distance, you hear a change in the sound. the change is in the sound's a) frequency. b) pitch and frequency. c) frequency and wavelength. d) pitch, intensity, and loudness.
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Apolice car is parked by the side of a highway and its siren emits a sound measuring 750 hz. as you...
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