Physics, 31.03.2020 04:27 Adones7621
Intelligent beings in a distant galaxy send a signal to earth in the form of an electromagnetic wave. The frequency of the signal observed on earth is 2.0% greater than the frequency emitted by the source in the distant galaxy. What is the speed vrel of the galaxy relative to the earth?
Answers: 2
Physics, 22.06.2019 07:00
We have a colorless transparent liquid. it looks like water. we seperated it into a solid and a liquid by evaporration and condention was this a chemichal or a physical seperation a. chemical seperation b. physical seperation
Answers: 3
Physics, 22.06.2019 21:20
Would it be correct to say the doppler effect is the apparent change in the speed of a wave due to the motion of the source? be sure to fully explain your position using at least 3 complete content related sentences.
Answers: 3
Intelligent beings in a distant galaxy send a signal to earth in the form of an electromagnetic wave...
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