A sound source that has a frequency of 500 Hz moves at a speed of 15 m/s approached a silent observer. What is the frequency heard observer, if: a. there is no wind b. the wind blows in the direction of the motion of the sound source at a speed of 5 m/s. c. the wind blows in the opposite direction of motion of the sound source at a speed of 5 m/s.

A sound source that has a frequency of 500 Hz moves at a speed of 15 m/s approached a silent observer. What is the frequency heard observer, if: a. there is no wind b. the wind blows in the direction of the motion of the sound source at a speed of 5 m/s. c. the wind blows in the opposite direction of motion of the sound source at a speed of 5 m/s.

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter17: Sound

Section: Chapter Questions

Problem 115P: A commuter train blows its 200-Hz horn as it approaches a crossing. The speed of sound is 335 m/s....

See similar textbooks

Similar questions

. A person stands directly in front of Iwo speakers that are emitting the same pure tone. The person then moves to one side until no sound is heard. At that point, the person is 7 in from one of the speakers and 7.2 in from the other. What is the frequency of the tone being emitted?
Ultrasonic sound waves are often used in methods of nondestructive testing. For example, this method can be used to find structural faults in a steel I-beams used in building. Consider a 10.00 meter long, steel I-beam with a cross-section shown below. The weight of the I-beam is 3846.50 N. What would be the speed of sound through in the I-beam? (Ysteel=200GPa,steel=159GPa) .
What is the intensity in watts per meter squared of 85.0dB sound?
Transverse waves are sent along a 5.00-m-long string with a speed of 30.00 m/s. The string is under a tension of 10.00 N. What is the mass of the string?
A guitar string oscillates at a frequency of 100 Hz and produces a sound wave. (a) What do you think the frequency of the sound wave is that the vibrating string produces? (b) If the speed of the sound wave is v=343 m/s, , what is the wavelength of the sound wave?
What is the minimum speed at which a source must travel toward you for you to be able to hear that its frequency is Doppler shifted? Thai is, what speed produces a shift of 0.300% on a day when the speed of sound is 331 m/s?
Student A runs down the hallway of the school at a speed of vo=5.00 m/s, carrying a ringing 1024.00-Hz tuning fork toward a concrete wall. The speed of sound is v=343.00 m/s. Student B stands at rest at the wall. (a) What is the frequency heard by student B? (b) What is the beat frequency heard by student A?
A plane is flying at Mach 1.2, and an observer on the ground hears the sonic boom 15.00 seconds after the plane is directly overhead. What is the altitude of the plane? Assume the speed of sound is vw=343.00 m/s.
Check Your Understanding Describe how noise-canceling headphones differ from standard headphones used to block outside sounds.
A stationary observer hears a frequency of 1000.00 Hz as a source approaches and a frequency of 850.00 Hz as a source departs. The source moves at a constant velocity of 75 mph. What is the temperature of the air?
An airplane moves at Mach 1.2 and produces a shock wave. (a) What is the speed of the plane in meters per second? (b) What is the angle that the shock wave moves?
. The frequency of middle C on the piano is 261.6 Hz. (a) What is the wavelength of sound with this frequency as it travels in air at room temperature? (b) What is the wavelength of sound with this frequency in water?