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When stars are in the main sequence, what two forces act against each other to maintain a star’s stable size?
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When stars are in the main sequence, what two forces act against each other to maintain a star’s stable size?

User HermitCrab
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force and motion hdhdhd
User Libor Zapletal
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While self-gravity pulls the star inward and tries to make it collapse, thermal pressure (heat created by fusion) pushes outward. These two forces cancel each other out in a main sequence star, thus making it stable.
User PetriW
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