Physics, 15.01.2020 17:31, tishaadams2160

As the ambulance got closer, marge noticed that the pitch of the siren got higher. this happened because

a) the sound waves were pushed closer together.

b) the human ear increases pitch over time.

c) the ambulance was further away.

d) the volume increased.

Answers: 1

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As the ambulance got closer, marge noticed that the pitch of the siren got higher. this happened bec...