A Group of Graduate Students, Bored During a Cloudy Night

question 10

Multiple Choice

A group of graduate students, bored during a cloudy night at the observatory, begin to make bets about the time different stars will take to evolve. If they have a cluster of stars which were all born at roughly the same time, and want to know which star will become a red giant first, which of the following stars should they bet on?

• A) a star of about the same mass as our Sun
• B) a star that would type O on the main sequence star
• C) a star of about 1/2 the mass of our Sun
• D) a star of about 8% the mass of our Sun
• E) you can't fool me, all stars reach the red giant stage in roughly the same number of years
• Section 22.2: Star Clusters

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Definitions:

Policies

Guiding principles or courses of action adopted by an organization, government, or individual to achieve certain goals.

Stagflation

A situation in the economy where inflation and unemployment rates are high simultaneously.

Keynesian Demand Management

A strategy based on Keynesian economics that entails adjusting the level of demand in the economy through monetary and fiscal policy to manage economic cycles.

Economy Control

The use of various tools and policies by a government to regulate and oversee the economy’s health and stability.