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Physics, 10.12.2019 00:31 timjape3g3z

What is the best prediction for what will happen when all of the hydrogen in the sun has undergone fusion?
helium nuclei will split to form hydrogen, and the sun will no longer release energy
helium nuclei will split to form hydrogen, and the sun will continue to release energy
helium nuclei will fuse to create heavier elements, but the sun will no longer release energy
helium nuclei will fuse to create heavier elements, and the sun will continue to release energy

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