Determine how fast is star moving with respect to the earth
Light of wavelength 657.9 nm is emitted by a star. The wavelength of this light as measured on Earth is 659.3 nm.
a. How fast is the star moving with respect to Earth?
b. Is the star moving toward Earth or away from it?
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Light of wavelength 657.9 nm is emitted by a star. The wavelength of this light as measured on Earth is 659.3 nm. a. How fast is the star moving with respect to Earth?
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