You Are Driving Along a Highway at 25

question 23

Multiple Choice

You are driving along a highway at 25.0 m/s when you hear the siren of an emergency vehicle traveling at constant speed in the opposite direction on the other side of the highway.When the vehicle is approaching you,you hear the frequency of the siren as 2380 Hz,but when it is past you the frequency becomes 1680 Hz.What is the frequency of the siren? The speed of sound in air is 343 m/s.

• A)1850 Hz
• B)2000 Hz
• C)2050 Hz
• D)2010 Hz
• E)1980 Hz

---

Definitions:

Intangible Outputs

Non-physical results produced by an organization or system, such as customer satisfaction, brand reputation, or intellectual property.

Zero Inventories

A business strategy aimed at minimizing holding inventory to reduce storage costs and waste, often relying on just-in-time production methods.

Labour Costs

Expenses incurred by a company for the salaries, wages, and other benefits provided to its employees.

Upstream/Downstream

Terms used to describe stages in a production or supply chain process; "upstream" involves raw material extraction or production, while "downstream" refers to the processing, distribution, and selling of finished products.