A Ceiling Fan Is Turned on and Reaches an Angular

question 49

Multiple Choice

A ceiling fan is turned on and reaches an angular speed of 110 rev/min in 20 s.It is then turned off and coasts to a stop in an additional 60 s.The ratio of the average angular acceleration for the first 20 s to that for the last 60 s is which of the following?

• A) ​-0.3
• B) -3
• C) ​3
• D) ​0.3
• E) ​1.4

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Definitions:

Aggregate Demand

Total economic demand for goods and services within an economy, calculated at a fixed price level during a designated time frame.

Aggregate Supply

The total supply of goods and services that firms in an economy plan to sell during a specific time period at different possible price levels.

Macroeconomic Forecasting

The process of making predictions about the overall state of the economy, including growth rates, inflation, and unemployment, based on analysis of trends and economic indicators.

Investment Tax Credits

Tax credits available to individuals and companies that reduce their tax bill as a direct incentive for investing in certain assets or for specific types of investments.