If one observes a very red celestial object its color can
If one observes a very red celestial object, its color can be due to the temperature if being; a cold star or due to the very high speed which it moves away from us. EXPLAIN how spectral lines can be used to conclude one way or the other
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if one observes a very red celestial object its color can be due to the temperature if being a cold star or due to the
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1 an automobile manufacturer has problems with sticking accelerator pedals they have come up with what they believe
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