The Cluster Method (Motions of Galaxies in a Cluster of Galaxies)

question 90

Multiple Choice

The cluster method (motions of galaxies in a cluster of galaxies) can be used to determine the cluster s mass

• A) luminosity.
• B) distance.
• C) mass.
• D) diameter.
• E) age.

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Definitions:

Bipolar Disorder

A psychiatric condition characterized by dramatic shifts in mood, from high (mania or hypomania) to low states (depression).

Identical Twins

Twins who develop from a single fertilized egg that splits and forms two embryos, sharing 100% of their genetic material.

Mood Disorder

A category of mental health disorders characterized by a disturbance in a person’s mood, leading to periods of depression or exaggerated happiness.

Bipolar Disorder

A mental health condition that causes extreme mood swings that include emotional highs (mania or hypomania) and lows (depression).