For Which Galaxies Would It Be Easiest to Measure Rotation

question 69

Multiple Choice

For which galaxies would it be easiest to measure rotation curves?

• A) elliptical
• B) face-on barred spirals
• C) face-on normal spirals
• D) face-on S0 galaxies
• E) edge-on spirals

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Oil Refineries

Facilities where crude oil is processed and refined into more useful petroleum products, such as gasoline, diesel fuel, and heating oil.

Growing Demand

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Economizing Problem

The fundamental economic issue of meeting people's unlimited wants with limited resources, necessitating choices and priorities in resource allocation.

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