1. Differentiate PITCH, INTENSITY and LOUDNESS.
Q: 5. A plane travels horizontally at 1.25 times the speed of sound. If a shock wave is felt 10 seconds…
A: Given, V=1.25 Vs From Triangle ABC, Sin θ = Vst / Vt Sin θ = Vs/ V Sin θ = Vs/ 1.25 Vs Sin θ = 1…
Q: 6. What is the intensity of a sound with a measured intensity level of 84 dB? (Io=10-12 W/m²)
A: The objective of this question is to calculate the intensity of a sound given its intensity level in…
Q: 5. Two sound waves, which are initially in phase, travel two different distances, x, and x, to an…
A: Interference is the phenomenon when two waves superimpose on each other. A couple of waves are said…
Q: If frequency of tuning fork is 400 Hz, find how far the sound travels when forks make 30 vibrations?…
A:
Q: 11. A string is vibrating in the 4th harmonic at a frequency of 480 Hz and with a wavelength of 24…
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Q: What is a mechanical Wave?
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Q: Jet engines typically emit sound over a wide spectrum of frequencies, with the maximum sound energy…
A: When the jet is 1 minute away, the frequency which is heard will be greater than 200 Hz , as the jet…
Q: 1. Twin jet engines on an airplane produce an average sound frequency of 3700 Hz with a beat…
A:
Q: 6. A trailer truck traveling east at 32.0 m/s sounds a 1100 Hz horn. What is the wavelength of the…
A: Speed of truck (vs) = 32 m/s towards eastFrequency of horn(fo) = 1100 HzThe speed of sound…
Q: 11. If 1 bug makes a sound of 8 dB then what will 25 bugs sound like?
A: 11) Given, Sound intensity level of 1 bug is 8dB.
Q: 9.What is the difference in sound intensity levels at 0.10 m and 10.0 m?
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Q: 3. Complete the chart below for a 50 cm string with a fundamental frequency of 100 Hz
A: .
Q: 14. The sound level of a normal conversation is about 60 dB. A rock concert is about 10 500 times…
A: Given:- The Sound level of a normal conversation is about β1= 60 dB. A rock concert is about 10500…
Q: 5. A pipe that is open at both ends is resonating at its fundamental frequency. If you now close one…
A: Let the speed of wave in a pipe = v Let the length of pipe = L
Q: 8. A piano tuner simultaneously strikes a 262 Hz tuning fork and the middle C key on a piano and…
A: 8) Given: Frequency of the tuning fork is f1 =262 Hz Period of beat is T=0.500 sec So frequency of…
Q: What is the sound intensity level of a sound with an W/m?? intensity of 1.7 x 10-4 dB
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Q: What is the intensity of the sound wave 3.0 meters from a speaker producing a 25 W sound at a…
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Q: 10. The highest key on a piano corresponds to a frequency about 150 times that of the lowest key.…
A: We are given the relation between frequencies of 2 strings. The wavelength is double of the length…
Q: 2. It was tradition in some army troops in the past to cease stepping in perfect formation whenever…
A: Resonance: This is a phenomena that occurs when frequency of a periodic force is equal to the medium…
Q: tch the first three standing waves that can be produced in an open-open tube. 2. Sketch the first…
A: In the sketch of the standing waves produced in the tube. Anti nodes are formed at open end and…
Q: 3.) A gas-filled 40.0 cm long pipe closed at one end produces a 624 Hz fundamental frequency.…
A: Wave.
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- 4. You pick up an empty 16 oz. plastic coke bottle and blow a steady airstream over the top edge of the bottle's mouth to set the air in the bottle into resonance. What is the frequency of the 1" mode for the bottle? (Hint: you'll need a metric ruler for this question). 5. The Empire State Building in NYC is approximately 440 meters in height. The superstructure of the building is made of steel which means that energy will be transmitted through the buildings core at 1500 m/sec. If the building is being blasted and buffeted by a strong wind storm, at what frequency will the building sway in it's 1st mode of vibration. (Hint: think about what type of a resonator a building could be)1. Calculate the speed of that wave. and compare with the speed of sound in the air. Given wavelength = 4 m resonant frequency = 80.13 Hz1. A standing wave is created in a musical instrument as shown below. The frequency of the sound is 280 Hz. What is the fundamental frequency of this instrument? а. 70 Hz. b. 40 Hz. XXXX с. 172 Hz. d. 140 Hz. е. 280 Hz.
- 10. If a sound has an intensity of 4.3 x 10-4 W/m², how many decibels is it?6. A singing barber shop quartet all together makes a sound level intensity of 85 dB when you are standing 7.8 m away on a warm day (27 °C). Assuming each of the 4 singers has equally strong vocals, what power is each singer producing? ANINT The figure below shows two masses hanging 110 g A wave pulse travels the length 8.4. What would be the intensity level of a 44-decibel sound after being amplified 10 million times? dB
- 6. What is the lowest frequency (excluding the fundamental) at which standing wave can occur in a 0.80-m long pipe with both ends open. The speed of sound in air is 341 m/s. Hz4. Draw the standing wave that corresponds to the 3rd lowest frequency in a pipe that is closed at one end and open on the other.7. Make sketches (four of them) of the air displacement (represented graphically) in a standing wave tube open at both ends for the first four harmonics.