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Home Q & A Board Science-Related Homework Help Physics
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GollumOfOz GollumOfOz
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7 years ago
A star is moving towards the earth with a speed at 90% the speed of light. It emits light, which moves away from the star at the speed of light. Relative to us on earth, what is the speed of the light moving toward us from the star?
A) 0.90c
B) c
C) 1.1c
D) 1.20c
E) 1.9c
Textbook 
Principles & Practice of Physics

Principles & Practice of Physics


Edition: 1st
Author:
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smith239smith239
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7 years ago
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GollumOfOz Author
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#2
7 years ago
Makes sense to me
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