(Solved): H-alpha line is a red visible spectral line in hydrogen atom with a wavelength of 656.3 nm. Consid ...

H-alpha line is a red visible spectral line in hydrogen atom with a wavelength of 656.3 nm. Consider five distant stars labeled A, B, C, D, and E. The light from these starts was detected on Earth and, after performing spectral analysis, the following H-alpha wavelengths were measured: AA = 657.6 nm, AB = 648.1 nm, Ac = 652 nm, Ap = 668.9 nm, and ? = 661.5 nm. Which star has the slowest speed relative to Earth, in which direction and how fast does it move? The slowest star is A and it moves away from + Earth. Units km/s + The speed of the slowest star (in km/s), Vslowest = Which star has the fastest speed relative to Earth, in which direction and how fast does it move? and it moves away from The fastest star is D ? Earth. Units km/s The speed of the fastest star (in km/s), Vfastest =