2. There
is shift in sound
frequency for observers towards
whom the source is approachi...
![subject](/tpl/images/cats/fizika.png)
Physics, 26.03.2021 05:10 miahbaby2003p2af1b
2. There
is shift in sound
frequency for observers towards
whom the source is approaching.
A. a downward
B. an upward
C. no
![ansver](/tpl/images/cats/User.png)
Answers: 3
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