Suppose a Galaxy Has a Flat Rotation Curve

question 20

Multiple Choice

Suppose a galaxy has a flat rotation curve.How does the amount of mass within 20 kpc compare to the amount of mass within 10 kpc?

• A)Twice as great
• B)4 times as great
• C)Half as great
• D)One-quarter as great

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Definitions:

Discrimination

Unjust or prejudiced treatment of different categories of people, especially on the grounds of race, age, or sex.

Frustration

The feeling of being upset or annoyed, especially because of inability to change or achieve something.

Early-onset

Referring to the occurrence of symptoms or conditions at an earlier stage or age than is typical or expected.

Alzheimer's Disease

A progressive neurodegenerative disease that causes memory loss, cognitive decline, and eventually leads to death.