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Home Q & A Board Science-Related Homework Help Physics
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symbo symbo
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7 years ago
Which physical process generates the force inside a pre-main-sequence star to stop the star from slowly condensing and shrinking by offsetting the force of gravity, thereby resulting in a stable main-sequence star?


(a)   The additional heat generated by the nuclear fusion, starting when the temperature reaches a certain limit, produces an increase in internal gas pressure.
(b)   Degeneracy pressure from electrons, caused by the quantum-mechanical Pauli Exclusion Principle when the electrons are forced very close together, generates extra pressure.
(c)   No physical process can prevent this condensation until a black hole is produced at the center of the star. Condensation and shrinking of the star continues slowly throughout its lifetime.
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
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papachulopapachulo
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symbo Author
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6 years ago
Thanks for answering, I'll share this with my classmates too
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