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Home Q & A Board Science-Related Homework Help Physics
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killian killian
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10 years ago
Which event marks the beginning of a supernova?
A) the onset of helium burning after a helium flash in a star with mass comparable to that of the Sun
B) the sudden outpouring of X-rays from a newly formed accretion disk
C) the sudden collapse of an iron core into a compact ball of neutrons
D) the beginning of neon burning in an extremely massive star
E) the expansion of a low-mass star into a red giant
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padrepadre
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10 years ago
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killian Author
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10 years ago
Thx sir
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