If the Rotational Speed of the Gas in the Disk

question 33

Multiple Choice

If the rotational speed of the gas in the disk of a spiral galaxy is 200 km/s at a distance of 25,000 pc from its center,then what is the mass enclosed within this radius?

• A)7.5 billion M_⨀
• B)18 billion M_⨀
• C)70 billion M_⨀
• D)230 billion M_⨀
• E)400 billion M_⨀

Recognize the patent application requirements and the scope of patent protection.

Differentiate between legal and illegal uses of trademarks and copyrights.

Be aware of the limitations and challenges in protecting intellectual property in the digital environment.

Understand the structure and membership of international financial and trade organizations.

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Definitions:

Marketing Economy

An economy where decisions regarding investment, production, and distribution are based on market conditions, primarily supply and demand.