Imagine that you have obtained spectra for several galaxies and have measured the observed wavelength of a hydrogen emission line that has a rest wavelength of 656.3 nanometers. Here are your results: Galaxy 1: Observed wavelength of hydrogen line is 659.7 nanometers. Galaxy 2: Observed wavelength of hydrogen line is 667.7 nanometers. Galaxy 3: Observed wavelength of hydrogen line is 683.7 nanometers. A) Calculate the redshift, z, for each of these galaxies.
B) From their redshifts, calculate the speed at which each of the galaxies is moving away from us using the Doppler formula. Give your answers as a fraction of the speed of light.
C) Estimate the distance to each galaxy from Hubbleʹs law.
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The language of anna's country has a turkish influence. where does anna live?
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1. crust 1 the metallic layer at the earth's center 2. inner core 3 the firm layer between the crust and the asthenosphere 3. lower mantle 2 the layer surrounding the inner core 4. asthenosphere 4 the semi-solid layer between the top layer and the upper mantle 5. upper mantle 5 the layer between the asthenosphere and lower mantle 6. top layer 6 the earth's outermost layer 7. outer core 7 the hottest part of the mantle
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Imagine that you have obtained spectra for several galaxies and have measured the observed wavelengt...
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