A Star Orbits Within the Disk of the Milky Way

question 6

Multiple Choice

A star orbits within the disk of the Milky Way Galaxy, 40 000 ly from the centre. Which of the following will its orbital speed most depend on?

• A) the mass of the black hole at the centre of the galaxy
• B) the position of a star relative to a spiral density wave
• C) the mass contained within the star's orbit
• D) the abundance of metals in the star

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Definitions:

Conflicts

Situations in which incompatible goals, attitudes, emotions, or behaviors lead to disagreement or opposition between individuals or groups.

Types

Varieties or classifications into which people, objects, or concepts are grouped based on common characteristics or attributes.

Example

An example serves as a representative case or illustration of a particular concept, situation, or phenomenon, used to clarify or explain.

Locus of Control

A psychological concept referring to the extent to which individuals believe they have control over events affecting them.