Only about 5% of the energy in the universe is composed of baryonic matter. (a) Estimate the
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(a) Estimate the average density of baryonic matter in the observable universe with a radius of 14 billion light-years that contains 1011 galaxies, each with about 1011 stars like our Sun.
(b) Estimate the density of dark matter in the universe.
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a According to the textbook near Fig 3333 the visible matter makes up about onetenth of the tot...View the full answer
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