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FromTheMoon [43]
2 years ago
8

What element are the cores of massive stars made of when a supernova occurs?

Physics
1 answer:
Studentka2010 [4]2 years ago
8 0
I think its C. Oxygen 
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The International Space Station has a mass of 1.8 × 105 kg. A 70.0-kg astronaut inside the station pushes off one wall of the st
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