You Are Driving Along a Highway at 35

question 15

Multiple Choice

You are driving along a highway at 35.0 m/s when you hear the siren of a police car approaching you from behind and you perceive the frequency as 1310 Hz. You are relieved that he is in pursuit of a different speeder when he continues past you, but now you perceive the frequency as 1240 Hz. What is the frequency of the siren in the police car? The speed of sound in air is 343 m/s.

• A) 1300 Hz
• B) 1320 Hz
• C) 1270 Hz
• D) 1360 Hz
• E) 1370 Hz

---

Definitions:

Benin King

The ruler of the Benin Empire, a pre-colonial African state located in what is now southern Nigeria, known for its art, especially bronze sculptures.

Ancestor Kings

Refers to deceased monarchs or rulers who are venerated as forebears and often believed to possess posthumous spiritual powers or influence within a society.

The Congo River

One of the largest rivers in Africa, it traverses the continent's equatorial region, playing a critical role in the ecosystems and cultures of the region.

Central Africa

A region in the African continent characterized by its geographical location around the Equator, renowned for its diverse cultures, rainforests, and wildlife.