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Two sources of sounds and
produce sound waves of the same frequency 660 Hz. A listener is moving from source
towards
with a constant speed u m/s and he hears 10 beats/s. The velocity of sound is 330 m/s. Then, u equals:
5.5 m/s
15.0 m/s
2.5 m/s
10.0 m/s
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beat frequency =
Option 1)
5.5 m/s
Option 2)
15.0 m/s
Option 3)
2.5 m/s
Option 4)
10.0 m/s