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Physics, 22.04.2020 04:56 singlegirlforlife541

Let's say that the number density of galaxies in the universe is, on average, 3 × 10–68 galaxies/m3. If astronomers could observe all galaxies out to a distance of 1010 light-years, how many galaxies would they find? (Note that there are 1016 meters in 1 light-year.)

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Let's say that the number density of galaxies in the universe is, on average, 3 × 10–68 galaxies/m3....
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