The Observation by Hubble That Demonstrated for the First Time

question 49

Multiple Choice

The observation by Hubble that demonstrated for the first time that the Andromeda "nebula" was at a very large distance from the Sun and outside the Milky Way Galaxy was that

• A) Cepheid variable stars appeared to be very faint in the "nebula."
• B) the "nebula" appeared to be rotating night by night around a center that was not the center of the Milky Way.
• C) stars with characteristics similar to those of the Sun appeared to be absent in the "nebula."
• D) globular clusters appeared to be distributed in a halo around the "nebula," a sure sign of a separate galaxy.

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Definitions:

Contribution Margin

The difference between the sales revenue of a product and the variable costs associated with producing it, used to cover fixed costs and contribute to profit.

Variable Costing

An accounting method that only includes variable production costs—costs that change with production volume—in the cost of goods sold.

Fixed Costs

Expenses that do not change with the level of goods or services produced by a business within a certain range of activity.

Cost of Goods Manufactured

The total production cost of goods completed during a specific period, including materials, labor, and overhead.