What does the red-shift of galaxies indicate?
A.
The galaxies are not moving.
B.
The galaxies are shrinking.
C.
The galaxies are moving toward each other.
D.
The galaxies are moving away from each other.
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jagr2713 (jagr2713):
what do you think @daisysmilecat
OpenStudy (anonymous):
idk maybe a
jagr2713 (jagr2713):
Incorrect, A red shift indicates that the object emitting the wave in a medium is moving away from the observer, when an object emitting light moves away from us, the frequency of that light will drop (turn "redder"). This is because the speed of light is a constant, no matter where you measure it, no matter what motion you are in
OpenStudy (anonymous):
so what is the answer
jagr2713 (jagr2713):
Read it :D
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OpenStudy (anonymous):
d maybe
jagr2713 (jagr2713):
:/ u didnt read my comment. It literally says it in there
OpenStudy (anonymous):
i did but i dont understand
jagr2713 (jagr2713):
Read the first sentence..
OpenStudy (anonymous):
ok i did now what
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jagr2713 (jagr2713):
Ok what do you think it is from reading the first Sentence
OpenStudy (anonymous):
c
OpenStudy (anonymous):
or b
jagr2713 (jagr2713):
Pick one, cmon just read it
OpenStudy (anonymous):
c
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