Ineed some w/ this:
a police car siren emits a frequency of 2010 hz when stationary. w...
Ineed some w/ this:
a police car siren emits a frequency of 2010 hz when stationary. when it is driving toward a stationary car, the other driver hears a frequency of 2120 hz. how fast is the police car driving?
using the doppler's effect equation, i got the answer ±16.3, but that apparently isn't the correct answer.
edited: ohhh ok, i got it, answer is 17.7 whoops
Answers: 3
Physics, 22.06.2019 23:00, maddie6825
1700 j of energy is lost from 0.14 kg object , the temperature decreases from 50°c to 45°c what is the specific heat of this object, amd what is the material ?
Answers: 1
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