The ____ Depend(s) on the Assumption That the Mass of a Galaxy

question 12

Multiple Choice

The ____ depend(s) on the assumption that the mass of a galaxy or galactic cluster is large enough to keep moving matter bound to the main structure.

• A) rotation curve method
• B) velocity dispersion and cluster methods
• C) Shapley-Curtis and Hubble methods
• D) recessional velocity method
• E) tangential velocity method

---

Definitions:

Jean Piaget

A Swiss psychologist renowned for his developmental stage theory that children progress through four critical stages of cognitive development.

Assimilation

A cognitive process in which individuals integrate new information with existing knowledge, or in a sociological context, the process by which individuals or groups adapt to the culture of another group.

New Experiences

Encounters or activities that are different from one's previous ones, contributing to learning or personal growth.

Mental Structures

The underlying psychological frameworks that shape how individuals perceive, think, and understand the world.