In Order to Measure the Speed of the Sun with Respect

question 29

Multiple Choice

In order to measure the speed of the Sun with respect to the center of the Galaxy, it was necessary to establish a rest frame. What was used to establish this frame?

• A) the average of several nearby galaxies
• B) the globular clusters in the halo because they remain at rest while the Galaxy rotates beneath
• C) the globular clusters in the halo because their velocities must average to zero
• D) the Great Attractor because its enormous mass acts like a stationary point

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Definitions:

Information Flows

The movement or transmission of data and information within an organization from one point or person to another.

Brainstorming

A group creativity technique designed to generate a large number of ideas for the solution of a problem.

Decision Making

The process of making choices between alternatives, involving judgment, evaluation, and selection, to achieve certain objectives.

Choosing

The process of making a decision or selecting an option among several alternatives.