![4. Consider a horizontal tube filled with air which is closed at one end. By blowing across the open end the fundamental standing wave of the air column inside the tube is produced. [You can assume the speed of sound in air is 344ms-1] (a) Sketch the tube, clearly labelling all of the pressure and displacement nodes (b) If the length of the air column in the tube is 32.0 cm, calculate the frequency and anti-nodes of this standing wave and the closest higher harmonic. The closed end of the tube is now opened. (c) Sketch the tube again, labelling the new positions of the (i) pressure and (ii) displacement nodes and anti-nodes for the fundamental frequency. Specify the new fundamental frequency (d) If a fine uniform layer of powder is now added along to the bottom of the tube, specify where will the powder tend to move to under the influence of the wave vibrations. Explain your reasoning 10] OVK, 2019](http://img.homeworklib.com/questions/a544ace0-7266-11ea-afd0-0f99ad98d599.png?x-oss-process=image/resize,w_560)
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Homework Answers
In closed end organ pipe, fundamental standing wave is having one fourth of wavelength
(d) particals of powder will
tend to collect at the middle of the pipe, means at point of
Node
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4. Consider a horizontal tube filled with...
Pre-Lab for LAB#11 Waves in air may be represented by oscillations of air molecules or of...
Pre-Lab for LAB#11 Waves in air may be represented by oscillations of air molecules or of air pressure. When representing standing waves in air, displacement nodes correspond to pressure antinodes (places of greatest pressure variation), and displacement antinodes correspond to pressure nodes (places of least pressure variation). Problem Consider a pipe that is closed at one end. Sketch the standing wave pattern in each of the following situations to show the regions of greatest and least air pressure variations (pressure...
Problem 4 [8 pts] A long pipe, length L, is closed at both ends, and filled...
Problem 4 [8 pts] A long pipe, length L, is closed at both ends, and filled with a gas with speed of sound v. The pipe is excited in some fashion in order to produce standing waves. (a) Sketch the standing wave pattern for the four lowest frequencies supported by this pipe. Label the nodes and antinodes. (b) Make a table of the wavelengths and frequencies of the sound waves that are formed by these four excitations, in terms of...
1. [1pt] Consider standing sound waves in a tube. Answer true (T) or false (F) to...
1. [1pt] Consider standing sound waves in a tube. Answer true (T) or false (F) to the following statements; e.g., enter FFF. The highest pressure and lowest pressure in the standing wave both occur where the particle displacement is the smallest. The frequency of the standing wave increases as the harmonic mode increases. For a pipe closed at one end, the pressure varies more at the closed end than at the open end.
Sketch the standing wave pattern of the pressure for the first three virbation modes of an...
Sketch the standing wave pattern of the pressure for the first three virbation modes of an air column in a closed tube of length L. What are the corresponding frequencies, in multiples of the fundamental frequency?
Ralph’s ear canal is 2.79 cm long. If it is regarded as a tube that is...
Ralph’s ear canal is 2.79 cm long. If it is regarded as a tube that is open at one end and closed at the eardrum, what is the fundamental frequency (Hz) around which we would expect hearing to be most sensitive? Consider the anti-node of a standing wave in the ear canal to occur exactly at the end of the canal. Use 345 m/s for the speed of sound in air
A copper tube with an inner diameter of 7.46 cm at room temperature (20'C) is to be tension fitted with a glass marble of diameter 7.47 cm. To which temperature must the 100.00-cm long copper...
A copper tube with an inner diameter of 7.46 cm at room temperature (20'C) is to be tension fitted with a glass marble of diameter 7.47 cm. To which temperature must the 100.00-cm long copper tube be heated to be able to accommodate the marble? The linear expansion coeficient of copper is 17x 10() , for glass you can assume the expansion coefficient to be zero.(4) 1. -1 2. Initially, the tube is open at both ends. When you blow...
4. A tuning fork is set up near the end of an air-filled tube of variable...
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Can someone help me do my prelab please. Thank you. Resonance Pre-Lab Assignment (1 point) Recall...
Can someone help me do my prelab please. Thank you.
Resonance Pre-Lab Assignment (1 point) Recall from the "Introduction to Waves" lab that it was easy to calculate the harmonic number (n) and wavelength ) of standing waves on a string by counting the number of antinodes 2L/n). That was a system with nodes fixed at the end points. Today you will be working with a system that has one open end and one closed end (i.e. a node fixed...
a) 266.6k b)0.353m Standing Sound Waves (16.3.10) The resonating air column in the open-closed pipe shown...
a) 266.6k
b)0.353m
Standing Sound Waves (16.3.10) The resonating air column in the open-closed pipe shown below is 0.635 m long. If the lowest frequency that can be produced by the pipe is 129 s'1, what is the temperature? The pipe is cut a distance d from the closed end (shown below by the dotted line) so that we now have two shorter pieces: an open-open piece and an open-dosed piece. If the second-lowest frequency that can be produced by...
please answer both questions Twin 3. (2 pts) The tension force in a wire is 160...
please answer both questions
Twin 3. (2 pts) The tension force in a wire is 160 N when it is stretched between two fixed points 0.8 meters apart. The mass per unit length of the wire is 2.5 x 10-4 kg/m. A standing wave pattern having 5 antinodes is observed. Find: (a) the wave speed on the string, (b) the wavelength of observed standing wave, and (c) the frequency of the oscillation. PON S m m = 25X104 .8*2.564 =...
Pre-Lab for LAB#11 Waves in air may be represented by oscillations of air molecules or of air pressure. When representing standing waves in air, displacement nodes correspond to pressure antinodes (places of greatest pressure variation), and displacement antinodes correspond to pressure nodes (places of least pressure variation). Problem Consider a pipe that is closed at one end. Sketch the standing wave pattern in each of the following situations to show the regions of greatest and least air pressure variations (pressure...
Problem 4 [8 pts] A long pipe, length L, is closed at both ends, and filled with a gas with speed of sound v. The pipe is excited in some fashion in order to produce standing waves. (a) Sketch the standing wave pattern for the four lowest frequencies supported by this pipe. Label the nodes and antinodes. (b) Make a table of the wavelengths and frequencies of the sound waves that are formed by these four excitations, in terms of...
A copper tube with an inner diameter of 7.46 cm at room temperature (20'C) is to be tension fitted with a glass marble of diameter 7.47 cm. To which temperature must the 100.00-cm long copper tube be heated to be able to accommodate the marble? The linear expansion coeficient of copper is 17x 10() , for glass you can assume the expansion coefficient to be zero.(4) 1. -1 2. Initially, the tube is open at both ends. When you blow...
4. A tuning fork is set up near the end of an air-filled tube of variable length as shown. As the length of the air column is changed, we hear resonances as we match the length to the wavelength of the harmonics. By changing the tube length by 10.0 cm, we go from one harmonic to the next for this sound wave. (See Sample Problem 14-17 for a similar question.) amr o Y oine variable isgo a) What is the...
Can someone help me do my prelab please. Thank you.
Resonance Pre-Lab Assignment (1 point) Recall from the "Introduction to Waves" lab that it was easy to calculate the harmonic number (n) and wavelength ) of standing waves on a string by counting the number of antinodes 2L/n). That was a system with nodes fixed at the end points. Today you will be working with a system that has one open end and one closed end (i.e. a node fixed...
a) 266.6k
b)0.353m
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please answer both questions
Twin 3. (2 pts) The tension force in a wire is 160 N when it is stretched between two fixed points 0.8 meters apart. The mass per unit length of the wire is 2.5 x 10-4 kg/m. A standing wave pattern having 5 antinodes is observed. Find: (a) the wave speed on the string, (b) the wavelength of observed standing wave, and (c) the frequency of the oscillation. PON S m m = 25X104 .8*2.564 =...
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