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Home Q & A Board Science-Related Homework Help Physics
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Tsync Tsync
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8 years ago
A typical protostar may be several thousand times more luminous than the Sun. What is the source of this energy?
A) the ionization of the gas as it heats up
B) chemical combustion of hydrocarbons
C) from the release of gravitational energy as the protostar continues to shrink
D) nuclear fusion in its core
E) from nearby hot stars or supernovae that have initiated the star formation process
Textbook 
Astronomy Today

Astronomy Today


Edition: 8th
Authors:
Read 151 times
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Minoring in physics
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RatatouilleRatatouille
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8 years ago
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Tsync Author
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#2
8 years ago
Wonderful, thanks for your time and effort
Minoring in physics
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#3
8 years ago
Happy to help Slight Smile
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