The Period-Luminosity Relation Is Critical in Finding Distances With

question 97

Multiple Choice

The period-luminosity relation is critical in finding distances with:

• A)RR Lyrae stars.
• B)trigonometric parallaxes.
• C)spectroscopic parallaxes.
• D)Cepheid variables.
• E)pulsars.

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Definitions:

Improved Performance

The enhancement of one's ability to execute a task or activity better than before, often through practice, training, or other interventions.

Group Polarization

The enhancement of a group’s prevailing inclinations through discussion within the group.

Group Polarization

The phenomenon that occurs when a group's prevailing attitudes or beliefs become more extreme following group discussions.

Attitude

A fairly stable evaluative tendency to respond consistently to some specific object, situation, person, or category of people.