Physics, 15.10.2019 06:30 denareena97
Which of these is the best method to estimate the speed at which a star is moving away from earth?
measure the star's red shift
calculate the pitch due to changes in frequency of light
calculate the parallax due to changes in earth's position
measure the star's blue shift
Answers: 1
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Which of these is the best method to estimate the speed at which a star is moving away from earth? <...
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