In the “red shift” of radiation from a distant galaxy, the light Hy , known to have a wavelength of 434 nm when observed in the laboratory, appears to have a wavelength of 462 nm. What is the speed of the galaxy in the line of sight relative to the Earth? (answers must have correct significant figures)

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In the “red shift” of radiation from a distant galaxy, the light Hy , known to have a wavelength of 434 nm when observed in the laboratory, appears to have a wavelength of 462 nm. What is the speed of the galaxy in the line of sight relative to the Earth? (answers must have correct significant figures)

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