Concept explainers
(i)
The nature of the propagation of the gap.
(i)
Answer to Problem 16.1QQ
Option (b) is correct.
Explanation of Solution
In a transverse wave the disturbance in the medium is perpendicular to the direction of propagation. In a longitudinal wave the disturbance in the medium is parallel to the direction of propagation.
In this case, the direction of propagation of the wave is towards the ticket window. When one person leaves, the gap is filled by the next person step forward to fill the gap it means the disturbance in the medium is also towards the ticket window.
As the disturbance in the medium and the direction of propagation both are in the same direction that is parallel to each other therefore, the propagation of gap is longitudinal.
Conclusion:
The disturbance in the medium and the direction of propagation are not perpendicular. Hence, Option (a) is not correct.
The disturbance in the medium and the direction of propagation are in the same direction. Hence, Option (b) is correct.
(ii)
The resultant pulse moves around the stadium and the pulse is (a) transverse or (b) longitudinal
(ii)
Answer to Problem 16.1QQ
Option (a) is correct.
Explanation of Solution
In a transverse wave the disturbance in the medium is perpendicular to the direction of propagation. In a longitudinal wave the disturbance in the medium is parallel to the direction of propagation.
In this case, the people stand up of sit down whereas the pulse moves either to the left or to the right. So, the disturbance in the medium and the direction of propagation of the pulse are perpendicular to each other.
The direction of propagation of the pulse and the disturbance in the medium are perpendicular to each other therefore, the pulse is transverse.
Conclusion:
The direction of propagation of the pulse and the disturbance in the medium are perpendicular. Hence, Option (a) is correct.
The direction of propagation of the pulse and the disturbance in the medium are not in the same direction. Hence, Option (b) is not correct.
Want to see more full solutions like this?
Chapter 16 Solutions
PHYSICS:F/SCI.+.,V.1-STUD.S.M.+STD.GDE.
- The overall length of a piccolo is 32.0 cm. The resonating air column is open at both ends, (a) Find the frequency of the lowest note a piccolo can sound. (b) Opening holes in the side of a piccolo effectively shortens the length of the resonant column. Assume the highest note a piccolo can sound is 4 000 Hz. Find the distance between adjacent antinodes for this mode of vibration.arrow_forwardPipe A has a length L and is open at both ends. Pipe B has a length L/2 and has one open end and one closed end. Assume the speed of sound to be the same in both tubes. Which of the harmonics in each tube would be equal?arrow_forwardA sound wave in air has a pressure amplitude equal to 4.00 103 Pa. Calculate the displacement amplitude of the wave at a frequency of 10.0 kHz.arrow_forward
- A cable with a linear density of =0.2 kg/m is hung from telephone poles. The tension in the cable is 500.00 N. The distance between poles is 20 meters. The wind blows across the line, causing the cable resonate. A standing waves pattern is produced that has 4.5 wavelengths between the two poles. The air temperature is T=20C . What are the frequency and wavelength of the hum?arrow_forwardThe overall length of a piccolo is 32.0 cm. The resonating air column is open at both ends. (a) Find the frequency of the lowest note a piccolo can sound. (b) Opening holes in the side of a piccolo effectively shortens the length of the resonant column. Assume the highest note a piccolo can sound is 4 000 Hz. Find the distance between adjacent anti-nodes for this mode of vibration.arrow_forwardA string is fixed at both end. The mass of the string is 0.0090 kg and the length is 3.00 m. The string is under a tension of 200.00 N. The string is driven by a variable frequency source to produce standing waves on the string. Find the wavelengths and frequency of the first four modes of standing waves.arrow_forward
- The overall length of a piccolo is 32.0 cm. The resonating air column vibrates as in a pipe that is open at both ends. (a) Find the frequency of the lowest note a piccolo can play. (b) Opening holes in the side effectively shortens the length of the resonant column. If the highest note a piccolo can sound is 4.00 105 Hz, find the distance between adjacent antinodes for this mode of vibration.arrow_forwardTo increase the intensity of a wave by a factor of 50, by what factor should the amplitude be increased?arrow_forwardPorpoises emit sound waves that they use for navigation. If the wavelength of the sound wave emitted is 4.5 cm, and the speed of sound in the water is v=1530 m/s, what is the period of the sound?arrow_forward
- The speed of a transverse wave on a string is 300.00 m/s, its wavelength is 0.50 m, and the amplitude is 20.00 cm. How much time is required for a particle on the string to move through a distance of 5.00 km?arrow_forwardA string with a mass of 0.30 kg has a length of 4.00 m. If the tension in the string is 50.00 N, and a sinusoidal wave with an amplitude of 2.00 cm is induced on the string, what must the frequency be for an average power of 100.00 W?arrow_forwardTransverse waves travel through a string where the tension equals 7.00 N with a speed of 20.00 m/s. What tension would be required for a wave speed of 25.00 m/s?arrow_forward
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningUniversity Physics Volume 1PhysicsISBN:9781938168277Author:William Moebs, Samuel J. Ling, Jeff SannyPublisher:OpenStax - Rice UniversityPhysics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
- College PhysicsPhysicsISBN:9781285737027Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningCollege PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningPhysics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning