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 1390 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 1250 Hz. What is the frequency of the siren in the police car? The speed of sound in air is 343 m/s.

A 4.0-cm tall object is placed 70 cm away from a converging lens of focal length 35 cm. What are the nature and location of the image? The image is

A 2.10-m long gas column that is open at one end and closed at the other end has a fundamental resonant frequency 80.0 Hz. What is the speed of sound in this gas?

A 4.0-cm tall object is placed 52 cm away from a converging lens of focal length 26 cm. What are the nature and location of the image? The image is

A 2.90-m long gas column that is open at one end and closed at the other end has a fundamental resonant frequency 80.0 Hz. What is the speed of sound in this gas?

A 2.60-m long gas column that is open at one end and closed at the other end has a fundamental resonant frequency 80.0 Hz. What is the speed of sound in this gas?

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 1400 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 1290 Hz. What is the frequency of the siren in the police car? The speed of sound in air is 343 m/s.

Which of the following is a clinical manifestation of crush syndrome?

What is the most common clinical manifestation in osteoarthritis?

What is a common cause of endogenous osteomyelitis infection?