SAT, 27.11.2021 03:50 katelynnjoyce1
A police car (standing right next to the highway) emits a sound of 1220 hz frequency, the sound bounces of a car on the highway and returns with a frequency of 1250 hz.
Answers: 1
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A police car (standing right next to the highway) emits a sound of 1220 hz frequency, the sound boun...
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