Imagine that the universe is a spherical cavity with a radius of 10^28cm and impenetrable walls. If the temperature of t

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answerhappygod
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Imagine that the universe is a spherical cavity with a radius of 10^28cm and impenetrable walls. If the temperature of t

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Imagine that the universe is a spherical cavity with a radius of 10^28cm and impenetrable walls. If the temperature of the cavity is 3K, estimate the total number of photons in the universe and their energy. If the temperature of the cavity were 0K and the universe had 10^80 electrons in a Fermi distribution, calculate the Fermi moment of the electrons. Be careful with the units.
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