A Surface Explosion on a White Dwarf, Caused by Falling

question 145

Multiple Choice

A surface explosion on a white dwarf, caused by falling matter from the atmosphere of its binary companion, creates what kind of object?

• A) nova
• B) black dwarf
• C) brown dwarf
• D) Type I supernova
• E) Type II supernova

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Definitions:

Segment Margin

The amount of profit or loss produced by a particular segment of a business, considering only the revenues and expenses directly attributable to that segment.

Contribution Margin

The difference between sales revenue and variable costs, indicating how much revenue contributes to fixed costs and profit.

Common Fixed Expenses

Expenses that remain constant in total regardless of changes in the level of activity or volume of production.

Variable Expenses

Costs that change in proportion to the level of activity or volume of production in a company.