A Red Supergiant Star Is Found to Have a Surface

question 9

Multiple Choice

A red supergiant star is found to have a surface temperature of 2500 K and a luminosity 100,000 times that of the Sun.Use the Hertzsprung-Russell diagram in Figure 10-8 of Comins,Discovering the Essential Universe,6th ed.,to determine its approximate radius compared with that of the Sun.

• A) about 10 times larger
• B) about 100 times larger
• C) about 1000 times larger
• D) almost the same

Identify and understand the different types of plant tissues and their functions.

Recognize the structure and role of cork cambium in plants.

Describe the function of cork parenchyma in plant tissue.

Understand the protective role of the epidermis in plants.

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Definitions:

Market Risk Premium

The extra profit an investor is aiming for by choosing to invest in a market portfolio that carries risk instead of opting for assets devoid of any risk.

Government Bond

A type of investment where an investor loans money to a government in exchange for periodic interest payments plus the return of the bond's face value at maturity.

Treasury Bill

A Treasury Bill (T-Bill) is a short-term U.S. government debt obligation backed by the Treasury Department with a maturity of one year or less.