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:

Extracellular Matrix

A complex network of proteins and carbohydrates surrounding cells within tissues, providing structural and biochemical support to the surrounding cells.

Epithelial Cells

Cells that line the surfaces of the body, including the skin, blood vessels, urinary tract, and organs, serving as a barrier and involved in absorption and secretion.

Connective Tissue

Tissue that supports, binds together, and protects organs, including blood, bone, and cartilage.

Blood

A fluid in the bodies of humans and other animals that delivers necessary substances such as nutrients and oxygen to the cells and transports metabolic waste products away.