A Galaxy Cluster Consists of 1,000 Galaxies Within a Radius

question 36

Multiple Choice

A galaxy cluster consists of 1,000 galaxies within a radius of 2.5 Mpc,traveling at a typical velocity of 1,000 km/s.If the average stellar mass of a cluster galaxy is 10¹¹ M_Sun,what fraction of the cluster's mass is NOT stellar?

• A) 5/6
• B) 9/10
• C) 1/2
• D) 1/10

Understand the historical context and significance of the Redeemers' era in the South.

Analyze the mechanisms of racial discrimination and disenfranchisement in the post-Reconstruction South.

Identify and understand the role of significant individuals and their contributions to civil rights and racial equality.

Recognize the patterns of migration and the factors influencing African Americans and other racial groups.

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Definitions:

Real Interest Rate

The interest rate adjusted for inflation, reflecting the true cost of borrowing or real yield on an investment.

Inflation Premium

The additional interest rate that lenders demand to compensate for the loss of purchasing power of money due to inflation.

Yield Curve

The relationship between interest rates and the term of debt, generally expressed graphically. A normal yield curve is upsloping, reflecting rates that increase with increasing term. An inverted curve is downsloping.

Liquidity Premiums

Additional yield that investors require for holding securities with lower liquidity.