A Galaxy Rotation Curve Is a Plot of the Rotation

question 68

Multiple Choice

A galaxy rotation curve is a plot of the rotation speed as a function of the:

• A) galaxy's luminosity
• B) mass of the dark matter halo
• C) brightness of the luminous matter in the galaxy
• D) radius from the center
• E) ages of star clusters

---

Definitions:

Deadweight Loss

A loss of economic efficiency that can occur when equilibrium for a good or a service is not achieved or is not achievable.

Monopoly Pricing

The pricing strategies employed by a monopoly, characterized by the ability to set prices higher due to lack of competition.

Colluding

Coordinating actions or decisions secretly, especially between competitors in order to cheat or deceive others.

Industry

A category of business activity that produces goods or provides services, categorized by their focus and processes.