If a Spherical Galaxy of Diameter 100,000 Ly Contained Enough

question 30

Multiple Choice

If a spherical galaxy of diameter 100,000 ly contained enough mass to be a black hole, what would be its mass?

• A)200 x 10⁹ kg
• B)400 x 10⁹ kg
• C)6.9 x 10²³ kg
• D)3.2 x 10⁴⁷ kg
• E)6.4 x 10⁴⁷ kg

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Definitions:

Consumer Surplus

The disparity between the total price consumers are ready and able to pay for a service or product and what they end up paying.

International Trade

The exchange of goods and services between countries, which allows for greater variety of consumption and efficiency in production.

Trade Restrictions

Government-imposed limitations on the exchange of goods and services between countries, including tariffs, quotas, and embargoes.

Free Trade

is a policy followed by some international markets in which countries' governments do not restrict imports from, or exports to, other countries.