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Physics, 08.04.2020 04:30 McGregorshamara
If a star's radial velocity is -50 km/s, the frequency of its light would appear to be (higher or lower) than its true frequency. We usually say that the star's wavelength is (blue or red) shifted.
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If a star's radial velocity is -50 km/s, the frequency of its light would appear to be (higher or l...
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