What Is Characteristic of a Main Sequence Star

question 111

Multiple Choice

What is characteristic of a main sequence star?

• A)It has a mass less than the Sun's.
• B)It has rapid rotation and a strong stellar wind.
• C)Nuclear fusion in the core varies due to the amount of gravitational contraction that occursand which heavy elements are produced.
• D)The rate of nuclear energy generated in the hydrogen to helium fusing core equals the rateradiated from the surface.
• E)All of the above are correct.

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Definitions:

Infinitely Repeated Games

A concept in game theory where a game is played an unlimited number of times, allowing for strategies that can enforce cooperation in situations where one-time game theory would predict non-cooperation.

Credible Threat

A declaration or signal that one will take some negative action if conditions are not met, and it is believable and capable of being executed.

Oligopolistic Situation

A market condition where a few companies have the majority of market share and control over pricing.

Barriers to Entry

Factors that make it difficult for new firms to enter a market, often leading to reduced competition.