One end of a horizontal string is attached to a small-amplitude mechanical 60.0-Hz oscillator. The string's mass per unit length is 3.9 x 10-4kg/m. The string passes over a pulley, a distance l = 1.50 m away, and weights are hung from this end. Assume the string at the oscillator is a node, which is nearly true. (Figure 1) Figure Oscillator -1.50 m m 1 of 1 What mass m must be hung from this end of the string to produce one loop of a standing wave? Express your answer to two significant figures and include the appropriate units. m1 = Submit Part B m2 = Submit Part C _O Ti m5 = What mass m must be hung from this end of the string to produce two loops of a standing wave? Express your answer to two significant figures and include the appropriate units. Submit Value μA Request Answer li LO μА Value Request Answer What mass m must be hung from this end of the string to produce five loops of a standing wave? Express your answer to two significant figures and include the appropriate units. ΜΑ Units Value Request Answer Units ? Units ? ?

One end of a horizontal string is attached to a small-amplitude mechanical 60.0-Hz oscillator. The string's mass per unit length is 3.9 x 10-4kg/m. The string passes over a pulley, a distance l = 1.50 m away, and weights are hung from this end. Assume the string at the oscillator is a node, which is nearly true. (Figure 1) Figure Oscillator -1.50 m m 1 of 1 What mass m must be hung from this end of the string to produce one loop of a standing wave? Express your answer to two significant figures and include the appropriate units. m1 = Submit Part B m2 = Submit Part C _O Ti m5 = What mass m must be hung from this end of the string to produce two loops of a standing wave? Express your answer to two significant figures and include the appropriate units. Submit Value μA Request Answer li LO μА Value Request Answer What mass m must be hung from this end of the string to produce five loops of a standing wave? Express your answer to two significant figures and include the appropriate units. ΜΑ Units Value Request Answer Units ? Units ? ?

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 38P: Porpoises emit sound waves that they use for navigation. If the wavelength of the sound wave emitted...

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Concept explainers

Properties of sound

A sound wave is a mechanical wave (or mechanical vibration) that transit through media such as gas (air), liquid (water), and solid (wood).

Quality Of Sound

A sound or a sound wave is defined as the energy produced due to the vibrations of particles in a medium. When any medium produces a disturbance or vibrations, it causes a movement in the air particles which produces sound waves. Molecules in the air vibrate about a certain average position and create compressions and rarefactions. This is called pitch which is defined as the frequency of sound. The frequency is defined as the number of oscillations in pressure per second.

Categories of Sound Wave

People perceive sound in different ways, like a medico student takes sound as vibration produced by objects reaching the human eardrum. A physicist perceives sound as vibration produced by an object, which produces disturbances in nearby air molecules that travel further. Both of them describe it as vibration generated by an object, the difference is one talks about how it is received and other deals with how it travels and propagates across various mediums.

Question

One end of a horizontal string is attached to a small-amplitude
mechanical 60.0-Hz oscillator. The string's mass per unit length is
3.9 × 10 4kg/m. The string passes over a pulley, a distance
l = 1.50 m away, and weights are hung from this end. Assume
the string at the oscillator is a node, which is nearly true.
(Figure 1)
Figure
Oscillator
-1.50 m-
m
1 of 1
What mass m must be hung from this end of the string to produce one loop of a standing wave?
Express your answer to two significant figures and include the appropriate units.
m1 =
Submit
Part B
m₂ =
Submit
Part C
☐
m5 =
μÅ
What mass m must be hung from this end of the string to produce two loops of a standing wave?
Express your answer to two significant figures and include the appropriate units.
µÅ
Submit
Value
Request Answer
Value
Request Answer
µÅ
Units
What mass m must be hung from this end of the string to produce five loops of a standing wave?
Express your answer to two significant figures and include the appropriate units.
Value
Request Answer
Units
?
Units
?
?

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