What Evidence Do We Have That There Is Hidden Mass

question 16

Multiple Choice

What evidence do we have that there is hidden mass in the galaxy?

• A)Cool clouds of hydrogen
• B)RR Lyrae variable stars in globular clusters
• C)Non-Keplerian (flat)rotation curve at large radii
• D)Missing neutrinos from the Sun
• E)Dusty regions in the plane

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Definitions:

North America

A continent located in the Northern Hemisphere, mainly between the Atlantic and Pacific Oceans, consisting of countries like the United States and Canada.

Developing Schizophrenia

The process leading to the onset of schizophrenia, a chronic brain disorder characterized by distortions in thinking, perception, emotions, language, sense of self, and behavior.

Percent

A mathematical term expressing a fraction of 100, used to quantify ratios or comparisons.

Delusion

A false belief or judgment, often of persecution or grandeur, that indicates an illness in the perception of reality.