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Home Q & A Board Science-Related Homework Help Physics
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Nursesn Nursesn
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2 months ago

Light of wavelength 661.1 nm is received from a star that is emitting light of wavelength 659.6 nm. How fast is the star moving relative to the Earth, and is it moving toward or away?



▸

580 km/s away



▸

580 km/s toward



▸

680 km/s away



▸

680 km/s toward

Textbook 
College Physics

College Physics


Edition: 5th
Author:
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frithnefrithne
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