Physics, 18.12.2019 20:31 redstar215
What will the temperature of the cosmic microwave background be when the average distances between galaxies are 1.7 times as large as they are today? (hint: the peak wavelength of photons in the background will then also be 1.7 times as large as it is today.)
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What will the temperature of the cosmic microwave background be when the average distances between g...
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