An increase in the observed wavelength of a star indicates which of the following?
a. the sta...
World Languages, 23.09.2019 20:30 frisha
An increase in the observed wavelength of a star indicates which of the following?
a. the star is approaching earth
b. the star is receding from earth
c. the star is not moving relative to earth
d. the star is expanding
Answers: 1
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