Via the Rotation Curve Method, We Can Estimate the Mass

question 128

Multiple Choice

Via the rotation curve method, we can estimate the mass of galaxies like M31 from

• A)Doppler shifts of material at the edge of its disk and computing P = 2πr/v.
• B)the distances of the Doppler shift points from its center.
• C)Doppler shifts of material at the edge of its disk and computing P = 2πr/v and the distances of the Doppler shift points from its center.
• D)It is impossible to estimate the mass of M31.

---

Definitions:

DBT

Dialectical Behavior Therapy refers to a comprehensive cognitive-behavioral approach designed to help people manage their emotions, cope with stress, and improve relationships.

Dialectical Conceptualization

A method in psychology that involves understanding issues or behaviors by examining opposing viewpoints and integrating them for a more comprehensive understanding.

Psychological Realm

The domain pertaining to the mind and mental processes, where psychological activities and phenomena occur.

Polar Opposites

Polar opposites are two ideas, concepts, or positions that are diametrically opposed to each other, existing at extreme ends of a spectrum.