Physics, 05.04.2020 12:54, izzyisawesome5232

A hydrogen line in a star's spectrum has a frequency of 4.57x10^14 Hz when stationary. In Altair's spectrum, it is shifted upward by 3.98x10^10 Hz. What is Altair's velocity relative to us? (Unit=m/s)

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A hydrogen line in a star's spectrum has a frequency of 4.57x10^14 Hz when stationary. In Altair's s...