A Carousel That Is 5

question 47

Multiple Choice

A carousel that is 5.00 m in radius has a pair of 600-Hz sirens mounted on posts at opposite ends of a diameter.The carousel rotates with an angular velocity of 0.800 rad/s.A stationary listener is located at a distance from the carousel.The speed of sound is 350 m/s.The maximum beat frequency of the sirens at the position of the listener is closest to

• A) 6 Hz.
• B) 8 Hz.
• C) 10 Hz.
• D) 12 Hz.
• E) 14 Hz.

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Definitions:

Money Demand

The total amount of money that households and businesses want to hold at any given time, depending on interest rates, income levels, and economic activity.

Price Level

An index that measures the average of prices of goods and services in an economy, often used to evaluate inflation or deflation.

Money Demand Curve

A graphical representation showing the relationship between the quantity of money people want to hold and the interest rate, under the assumption all other factors remain constant.

Opportunity Cost

The consequence of losing possible gains from various options when one preference is made.