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:

Discount Rate

The discount rate that adjusts future cash flows to present value, accounting for the time value of money and associated risks.

Net Present Value

A financial metric that estimates the profitability of an investment, calculated by summing the present values of expected future cash flows and subtracting the initial investment cost.

Delivery Van

A type of vehicle used for transporting goods, products, or materials from one location to another.

Working Capital

The difference between a company's current assets and current liabilities, indicating its short-term liquidity and ability to finance day-to-day operations.