contestada

Sound waves
A. are a part of the electromagnetic spectrum
B. do not require a medium for transmission
C. are longitudinal waves
D. are transverse waves

The Doppler effect occurs with
A. only sound waves
B. only transverse waves
C. only water waves
D. all waves

Respuesta :

the answer should be C

for the first one the answer is C. are longitudinal waves.

and for the second one its D. all type of waves.

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