Small differences in the wavelengths in the suns spectrumare detected when measurements
Chapter 2, Problem 106(choose chapter or problem)
Small differences in the wavelengths in the suns spectrumare detected when measurements are takenfrom different parts of the suns disk. Specifi cally,measurements of the 656-nm line in hydrogen takenfrom opposite sides on the suns equatorone sideapproaching Earth and the other recedingdifferfrom each other by 0.0090 nm. Use this informationto fi nd the rotational period of the suns equator.Express your answer in days. (The suns equatorialradius is 6.96 108 m.)
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