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A red dwarf is _____. the remains of a supernova a hot pulsar a white dwarfs that has cooled a small main sequence star a protostar
Weegy: When a red giant completes helium fusion and collapses, it becomes a white dwarf. (More)
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Updated 10/1/2012 8:07:56 AM
1 Answer/Comment
A red dwarf is a small main sequence star.

Added 10/1/2012 8:07:56 AM
A red dwarf is _____. the remains of a supernova a hot pulsar a white dwarfs that has cooled a small main sequence star a protostar
Weegy: When a red giant completes helium fusion and collapses, it becomes a white dwarf. (More)
Question
All Categories|No Subcategories|
Updated 10/1/2012 8:07:19 AM
1 Answer/Comment
A red dwarf is a small main sequence star.

Added 10/1/2012 8:07:20 AM
The core of a star must reach a temperature of _____ degrees Celsius for hydrogen fusion to begin. 10,000 100,000 1,000,000 10,000,000 100,000,000 Question #18MultipleChoice Score: The _____ of a star is primarily determined by its surface temperature. compositionsizeapparent brightnessagecolor Question #19MultipleChoice Score: Hydrogen fusion occurs in the _____ of the Sun. photospherecoronacoreradiative zonechromosphereconvective zone Question #20MultipleChoice Score: The Sun is ...
Weegy: The core of a star must reach a temperature of 10,000,000 degrees Celsius for hydrogen fusion to begin. The brightness of a star is primarily determined by its surface temperature. Hydrogen fusion occurs in the core of the Sun The Sun is [ expected to undergo hydrogen fusion for a total of 10 billion years. ] (More)
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Asked 10/1/2012 7:33:54 AM
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If a moon were discovered to be at 1.5 AU from the sun, it would be how far from the sun in kilometers? 22,500 km 225,000 km 22, 500,000 km 225,000,000 km
Weegy: The answer is 225,000,000 km (More)
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Asked 10/2/2012 6:54:32 AM
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Adiabatic means
Weegy: Adiabatic means Of, relating to, or being a reversible thermodynamic process that occurs without gain or loss of heat and without a change in entropy. Read more: (More)
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Asked 10/2/2012 6:55:54 AM
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