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

question 48

Multiple Choice

By comparing globular clusters, you find that Cluster A's RR Lyrae stars are 100 times fainter than Cluster B's RR Lyrae stars. You know that Cluster A's stars are 1.5 times more luminous than Cluster B's stars, because Cluster A is more metal-rich and somewhat younger. How do the clusters' distances compare?

• A) Cluster A is 65 times farther away than Cluster B.
• B) Cluster A is 12 times farther away than Cluster B.
• C) Cluster A is 10 times farther away than Cluster B.
• D) Cluster A is seven times farther away than Cluster B.
• E) Cluster A and Cluster B are at approximately the same distance.

---

Definitions:

Units of Output

Quantities of product or service produced by a company, which can be measured to assess productivity or performance.

Quantity Supplied

The amount of a product that producers are willing and able to sell at a given price over a specified period of time.

Product Price

The amount of money required to purchase a good or service, commonly influenced by costs, demand, and supply factors.

Purely Competitive Seller

A seller in a market characterized by many buyers and sellers, free entry and exit, and a homogeneous product where no single seller can influence market price.