WT-1 You are designing an air-filled tube that is closed at one end and open at the other to have a sound wave with a fundamental frequency of 512HZ in air at sea level. a) Sketch a figure like the one shown to the right and draw below the tube the fundamental mode of vibration and the next three harmonics. Beside each pattern, write the tube-length-to-wavelength relationship. b) Find the length needed for this tube. c) Find the frequency needed for each standing wave pattern you sketched. Use your results from above to find the frequencies; do not use equations from memory. оpen closed

WT-1 You are designing an air-filled tube that is closed at one end and open at the other to have a sound wave with a fundamental frequency of 512HZ in air at sea level. a) Sketch a figure like the one shown to the right and draw below the tube the fundamental mode of vibration and the next three harmonics. Beside each pattern, write the tube-length-to-wavelength relationship. b) Find the length needed for this tube. c) Find the frequency needed for each standing wave pattern you sketched. Use your results from above to find the frequencies; do not use equations from memory. оpen closed

University Physics Volume 1

18th Edition

ISBN:9781938168277

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

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

Chapter16: Waves

Section: Chapter Questions

Problem 27CQ: Many of the topics discussed in this chapter are useful beyond the topics of mechanical waves. It is...

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The acoustical system shown in the figure below is driven by a speaker emitting sound of frequency 730 Hz. (Use v = 343 m/s.) If constructive interference occurs at a particular instant, by what minimum amount should the path length in the upper U-shaped tube be increased so that destructive interference occurs instead?m (b) What minimum increase in the original length of the upper tube will again result in constructive interference?
Two speakers producing the same frequency of sound are a distance of d apart. Consider an arc along a circle of radius R, centered at the midpoint of the speakers, as shown below. (a) At what angles will there be maxima? (b) At what angle will there be minima?
Two loudspeakers are placed above and below each other, as in the figure below, and driven by the same source at a frequency of 4.40 ✕ 102 Hz. An observer is in front of the speakers (to the right) at point O, at the same distance from each speaker. What minimum vertical distance upward should the top speaker be moved to create destructive interference at point O? (Let h = 2.58 m and use v = 343 m/s.)
The analysis of any two-point source interference pattern and a successful determination of wavelength demands an ability to sort through the measured information and equating the values with the symbols in Young's equation. Apply your understanding by interpreting the following statements and identifying the values of y, d, m and L. Finally, perform some conversions of the given information such that all information share the same unit. Two sources separated by 0.500 mm produce an interference pattern 525 cm away. The fifth and the second antinodal line on the same side of the pattern are separated by 98 mm. y= ________ d=________ m=_______ L=________
İf you going to hand writing in the solution, please make sure that it is clear and understandable.
The analysis of any two-point source interference pattern and a successful determination of wavelength demands an ability to sort through the measured information and equating the values with the symbols in Young's equation. Apply your understanding by interpreting the following statements and identifying the values of y, d, m and L. Finally, perform some conversions of the given information such that all information share the same unit. The fifth antinodal line and the second nodal line on the opposite side of an interference pattern are separated by a distance of 32.1 cm when the slits are 6.5 m from the screen. The slits are separated by 25.0 micrometers. y= ________ d=________ m=_______ L=________
Ever since seeing as shown in the previous chapter, you have been fascinated with the hearing response in humans. You have set up an apparatus that allows you to determine your own threshold of hearing as a function of frequency. After performing the experiment and recording the results, you graph the results, which look like as shown. You are intrigued by the two dips in the curve at the right-hand side of the graph. You measure carefully and find that the minimum values of these dips occur at 3 800 Hz and 11 500 Hz. Performing some online research, you discover that the outer canal of the human ear can be modeled as an air columnopen at the outer end and closed at the inner end by the eardrum. You use this information to determine the length of the outer canal in your ear.
A signal is sampled at 384 000 samples per second. The samples are encoded as 32-bit words a) Knowing that the signal to quantizing noise ratio for a sinewave over the whole dynamic range is SQNR- 2, L being the number of quantizing levels, what is the numerical value of the signal to quantizing noise ratio in dB, i.e. SQN RaB?
Explain in great detail, the two point source interference pattern and provide a diagram to further convey the concept.
In a 12m wide and 16m long classroom, there's two speakers mounted 4m apart on one of the shorter walls. Because of the large size of the classroom, the ceiling needs a few support columns. Your boss has decided to place the columns somewhere on the dashed lines in the diagram in the spots where there would have been destructive interference between the speakers.Calculate all the places on those lines where the columns could be located, assuming a sound frequency of 500 Hz and a speed of sound of 330 m/s in the room. ignore the effect of echoes.
Consider the graph shown below of a compression wave. Shown are snapshots of the wave function for t=0.000 s (blue) and t=0.005 s (orange). What are the wavelength, maximum displacement, velocity, and period of the compression wave?
(a) Seismographs measure the arrival times of earthquakes with a precision of 0.100 s. To get the distance to the epicenter of the quake, geologists compare the arrival times of S- and P-waves, which travel at different speeds. If S- and P-waves travel at 4.00 and 7.20 km/s, respectively, in the region considered, how precisely can the distance to the source of the earthquake be determined? (b) Seismic waves from underground detonations of nuclear bombs can be used to locate the test site and detect violations of test bans. Discuss whether your answer to (a) implies a serious limit to such detection. (Note also that the uncertainty is greater if there is an uncertainty in the propagation speeds of the S- and P-waves.)