A mass is hung from the end of a string with linear density 2.1 g/m around a small frictionless peg. For some values of this mass the string resonates with the vibrator's fre- quency and develops visible standing waves. A vibrator of constant frequency 312 Hz is attached near one end of the string. The vibrating length of the string is 2 m. 2 m H = 2.1 g/m 312 Hz vibrator m What is the mass m that will produce the standing wave shown? The acceleration of cravity is 9.8 m/s2. Answer in units of kg.

University Physics Volume 1
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ISBN:9781938168277
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Chapter16: Waves
Section: Chapter Questions
Problem 83P: A microphone receiving a pure sound tone feeds an oscilloscope, producing a wave on its screen. If...
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A mass is hung from the end of a string
with linear density 2.1 g/m around a small
frictionless peg. For some values of this mass
the string resonates with the vibrator's fre-
quency and develops visible standing waves.
A vibrator of constant frequency 312 Hz is
attached near one end of the string. The
vibrating length of the string is 2 m.
1. 25.0013
2. 13.2646
3. 20.8594
2 m
4. 10.7285
H = 2.1 g/m
5. 39.3067
312 Hz
vibrator
m
6. 13.6107
What is the mass m that will produce the
standing wave shown? The acceleration of
gravity is 9.8 m/s².
Answer in units of kg.
7. 25.6813
O 8. 21.1905
9. 28.2382
10. 19.9837
Transcribed Image Text:A mass is hung from the end of a string with linear density 2.1 g/m around a small frictionless peg. For some values of this mass the string resonates with the vibrator's fre- quency and develops visible standing waves. A vibrator of constant frequency 312 Hz is attached near one end of the string. The vibrating length of the string is 2 m. 1. 25.0013 2. 13.2646 3. 20.8594 2 m 4. 10.7285 H = 2.1 g/m 5. 39.3067 312 Hz vibrator m 6. 13.6107 What is the mass m that will produce the standing wave shown? The acceleration of gravity is 9.8 m/s². Answer in units of kg. 7. 25.6813 O 8. 21.1905 9. 28.2382 10. 19.9837
The figure shows two wave pulses that are
approaching each other.
1.
Which of the following best shows the shape
of the resultant pulse when the centers of the
pulses, points Pand Q, coincide?
2.
3.
4.
5.
Transcribed Image Text:The figure shows two wave pulses that are approaching each other. 1. Which of the following best shows the shape of the resultant pulse when the centers of the pulses, points Pand Q, coincide? 2. 3. 4. 5.
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