The Rotation Curve of the Milky Way Galaxy Is Non-Keplerian

question 4

Multiple Choice

The rotation curve of the Milky Way galaxy is non-Keplerian at large distances from the center.This is evidence for

• A)Rigid body rotation throughout the galaxy
• B)Large amounts of unseen mass in the outer galaxy or halo
• C)Gravitational waves in the galaxy
• D)Spiral arms
• E)Peculiar velocities of distant stars.

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Definitions:

Depreciation

An accounting method of allocating the cost of a tangible asset over its useful life.

Sales Price

The total cost that a consumer incurs to buy a product or service from a merchant.

Fixed Costs

Expenses that do not change with variations in the level of output or sales, such as rent, salaries, and insurance.

Variable Cost

Expenses that change in direct relation to production levels or sales figures.