A Main-Sequence Star Can Be No Smaller Than 0

question 48

Multiple Choice

A main-sequence star can be no smaller than 0.08 solar mass. The reason is that

• A) thermonuclear reactions begin so suddenly in stars of less than 0.08 solar mass that the star is disrupted by an explosion.
• B) protostars of less than 0.08 solar mass cannot form.
• C) protostars of less than 0.08 solar mass are not massive enough to contract.
• D) the temperature in a contracting protostar of less than 0.08 solar mass does not become high enough for nuclear reactions in normal hydrogen to start.

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Definitions:

Output

The total amount of goods or services produced by a firm or economy.

Taxed Away

Refers to the reduction in income or resources that occurs as a result of taxation.

Deadweight Loss

The loss of economic efficiency that occurs when the equilibrium for a good or service is not achieved or is not achievable.

Monopoly

A market structure characterized by a single seller dominating the market, with no close substitutes for the product or service offered, leading to limited competition.