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Science-Related Homework Help Physics Topic started by: Chery on Dec 6, 2016



Title: A star is moving toward Earth at 90% the speed of light. The star emits light, which moves away from ...
Post by: Chery on Dec 6, 2016
A star is moving toward Earth at 90% the speed of light. The star emits light, which moves away from the star at the speed of light. What do Earth-based astronomers measure for the speed of this light?
A) c
B) 1.9c
C) 1.2c
D) 0.98c
E) 0.95c


Title: Re: A star is moving toward Earth at 90% the speed of light. The star emits light, which moves away ...
Post by: noreyaga on Dec 6, 2016
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Title: Re: A star is moving toward Earth at 90% the speed of light. The star emits light, which moves away from ...
Post by: Chery on Jan 13, 2017
I needed this so much, thanks