Question

PLEASE HELP!!!!

Answer 1

Answer:

The Doppler effect describes the change in the observed frequency of a wave when there is relative motion between the wave source and the observerThe Doppler effect describes the change in the observed frequency of a wave when there is relative motion between the wave source and the observerThe Doppler effect describes the change in the observed frequency of a wave when there is relative motion between the wave source and the observerThe Doppler effect describes the change in the observed frequency of a wave when there is relative motion between the wave source and the observerThe Doppler effect describes the change in the observed frequency of a wave when there is relative motion between the wave source and the observerThe Doppler effect describes the change in the observed frequency of a wave when there is relative motion between the wave source and the observer

Answer 2

Answer:

90, warm, high, warm

Explanation:

I just took this. According to the map, I believe it's right. Will update once it's graded.