adibap20
adibap20 adibap20
  • 21-10-2021
  • Biology
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Guys pls help me!!!!!!!!!

Guys pls help me class=

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doglover985672
doglover985672 doglover985672
  • 21-10-2021

Trough is the the lowest point of a wave

Amplitude is the highest point of a wave

Spectrum is the amount of vibration at each individual frequency

Doppler effect is the changes in frequency of any kind of sound or light wave produced by a moving source with respect to an observer

With that I think the answer is b, but do what you think.

Hope this helps
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