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Use the equations E = mc2, E = hc/λ, and T = 0.29 K / λmax...

Use the equations E = mc2, E = hc/λ, and T = 0.29 K / λmax to explain why the very young universe (when less than 5 seconds old) was the ‘era of particle creation’ and why this era ended.

temperature > 6billion K

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