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kirza4 [7]
3 years ago
14

The Doppler effect changes the

Chemistry
2 answers:
postnew [5]3 years ago
8 0
The best answer that I would would be B
dem82 [27]3 years ago
3 0
<span>A) Frequency due to motion

As you are moving toward the object that is making the sound the frequency is higher.  When you begin to move away the frequency lowers.
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