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staedtler staedtler
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7 years ago
When a star's evolutionary track in the Hertzsprung-Russell diagram carries it into the instability strip, what happens to the star?
A)   It pulsates randomly in brightness.   C)   It explodes.
B)   It collapses and forms a black hole.   D)   It pulsates regularly in brightness.
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Discovering the Universe

Discovering the Universe


Edition: 7th
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papachulopapachulo
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staedtler Author
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7 years ago
Grinning Face Exactly what I needed
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