A Constant Torque of 15 N · M Acts for 3.0

question 8

Multiple Choice

A constant torque of 15 N · m acts for 3.0 s on a system of mass 2.0 kg.The change in angular momentum of the system during this period of time is

• A)5.0 kg · m²/s
• B)7.5 kg · m²/s
• C)10 kg · m²/s
• D)23 kg · m²/s
• E)45 kg · m²/s

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Definitions:

Price-Taker Industry

An industry in which individual firms have no control over the price of their product because the product is standardized, leading them to accept the prevailing market price.

Economic Profits

The difference between total revenue and total costs, including both explicit and implicit costs, indicating the extent to which a firm exceeds the opportunity cost of its resources.

Market Adjustment

Market Adjustment refers to the changes in price levels and economic variables in response to supply and demand dynamics.

Economic Losses

The difference when total costs exceed total revenues, indicating that a business is not profitable.