A Rotation Curve Is a Graph of

question 39

Multiple Choice

A rotation curve is a graph of

• A) distance from the edge of a galaxy versus star luminosity.
• B) speed of rotation versus distance from galactic center.
• C) rotational speed versus star mass.
• D) speed of rotation versus star temperature.

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Definitions:

Base Date

A specific point in time selected as a reference or starting point for calculations, measurements, or comparisons.

Gift-Wrapping Packages

Services or materials provided, often during holidays or special occasions, to aesthetically package gifts.

Importer

An entity that brings goods or services into a country from abroad for sale.

Proportions

Statements that two ratios are equal, showing the equivalence between two sets of numbers or measurements.