By Comparing Globular Clusters, You Find That Cluster A's RR

question 61

Essay

By comparing globular clusters, you find that Cluster A's RR Lyrae stars are 225 times fainter than Cluster B's RR Lyrae stars.You know that both clusters have approximately the same chemical composition and age, and thus their RR Lyrae stars should have the same luminosities.Which cluster has the larger distance, and what is the ratio of the clusters' distances?

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Definitions:

Health Action Process Approach Model

A psychological theory that describes the process of how individuals intend to achieve and maintain health-related behaviors.

Transition

The process or a period of changing from one state or condition to another in any aspect of life or environment.

Preparation Stage

A phase in the Transtheoretical Model of change where individuals intend to take action to address a behavior or problem within the near future.

Action Stage

A phase in the transtheoretical model of behavior change where individuals actively implement strategies to change behavior.