A airplane approaches at an altitude of 10 km flying at 600 km/hr.   1.  If the air temperature on average is -10 °C, what is the speed of sound in air? 2.  If the plane will be overhead in 1 minute, when will we hear it coming? 3.  Assuming the plane emits a frequency of 2000 Hz from its engines, what frequency do we hear initially when it is 1 minute away, and what frequency do we hear 1 minute after it has passed by?

Q: Loudness of waves is measured in what? What is the maximum safe level for loudness for humans? High…

A: "Since you asked multiple questions, we will solve the first three questions for you. If you want…

Q: 1. Differentiate PITCH, INTENSITY and LOUDNESS.

A: Vibrations are the source of the sound. A vibrating object causes the molecules in the surrounding…

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A: Given: In this question, the given details are, An airplane moving at 0.5 the speed of sound turns…

Q: 1. The sound of a mosquito is produced when it beats its wings at an a verage of 600 beats per…

A: The frequency means how many waves/beats per second. Hence, frequency, f = 600 Hz Wavelength = v/f =…

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A: A) In warmer air , particles travel _____ . B) Astronauts can only speak to each other in space if…

Q: The period of a sound wave is 0.010s. 1) Calculate the frequency f (Express answer to two…

A: Time period of sound wave is Note:Find:(a) Frequency of wave.(b) Angular frequency of wave.

Q: Part 2: 1. How much louder is a 90 dB sound com- pared to a 70 dB sound? ano ranoileaup A. 20 times…

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Q: Ultrasound with a frequency of 4457565 Hz can be used to produce images of the human body., If the…

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Q: 30. A car approaches you from behind as you run along a sidewalk. The car is moving towards you at…

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Q: Directions: Read and analyze carefully the problem below. - Box and use two decimal places fo final…

A: velocity of the train in which the man is standing, v0=35 m/s velocity of the source, vs= 0 m/s…

Q: 4. If a huge explosion occurs from a distance, which will you be able to observe first, the sound of…

A: As per policy i can answer only the 1st one. Kindly post the other question separately. Thank You

Q: Write true or false   18. Sounds whose frequencies are below 20 Hz are called ultrasounds. 19.…

A: 18: False Sounds below 20 Hz are called infra sound.

Q: 9. The apparent change in the frequency of a sound wave as the source and the observer move towards…

A: The Doppler effect is the apparent change in frequency of a wave when the observer and the source of…

Q: If I increase the tension of the string 4 times, how the velocity of the wave will change?…

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Q: 1. How do we hear sound?

A: Since you have been posted multiple questions. So, we are solving only first question for you. If…

Q: Which pair of waves could overlap to produce a wave with a higher amplitude through interference? O…

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Q: 1. If the handle of a vibrating tuning fork is held against a table, the sound of the tuning fork…

A: As per our guidline in MCQ question we are allowed to do only one question. Please send other…

Q: 4. Sound waves do not travel through B. liquids C. gases 5. A source of 500 Hz frequency emits waves…

A: “Since you have asked multiple question, we will solve the first three question for you(as these are…

Q: PRACTICE 1. Use the graphic below to answer these questions. a. Which harmonic is shown in each of…

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Q: The sound from a 40-Hz electric razor spreads out at 320 m/s a. What is the frequency b. What is…

A: Given data :- frequency f = 40 Hz speed v = 320 m/s

Q: 4. A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1,250 Hz. The…

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Q: 4.5. The fret closest to the bridge on a guitar is 21.4 cm from the bridge as shown in Figure below.…

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Q: 3. Balboa Park in San Diego has an outdoor organ. When the air temperature increases, what happens…

A: Since we follow Bartleby guidelines i can only answer question no 3 as others are not related.…

Q: What is sound? What features of a sound wave and what aspects of sound do they correspond best to…

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Q: The frequency of a mechanical wave, that has a wavelength of 8.5 cm and moves a distance of 5.1 km…

A: Given information: The wavelength of the wave (λ) =8.5 cm = 0.085 m The distance traveled by the…

Q: 6. A sound wave with its characteristic pattern of compressions and rarefactions is shown below. A…

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Q: e of wave is a sound wave?

A: Solution

Q: The sound wave with a frequency above 20,000 Hz is called O a. Audible O b. Infrasonic O. X ray O d.…

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Q: 8. In warmer air, particles travel 9. Astronauts can only speak to each other in space if they use…

A: Sound always requires a medium to transfer, it is the particles of the medium that actually carries…

Q: 1. The hearing range of a normal human ear is from 20 to 20000 Hz. If the speed of the sound in air…

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Q: Q5. Choose and write the correct answer. 1. When two objects are touching each other and they can…

A: Since you have asked multiple questions, we will answer the first question for you according to the…

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Q: frequency?

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Q: 34.. What is the longest wavelength (in cm) of a standing wave that could be produced on a string of…

A: The answer to the given problems are as follows.

Q: A bat uses echolocation to detect prey as small as about one wavelength of the sound of a bat call.…

A: We know thatλ=vfWherev=speed of waveλ=wavelengthf=frequency

Q: . The sound of a loud rock concert (at 100 decibels) is how much louder than the sound of rustling…

A: decibel scale is logarithmic scale.every 10 decibels you add multiplies the intensity of the sound…

Q: struck, producing a wave with a wavelength of 110 cm and a speed of m/s. What is the frequency of…

A: Given values:- Wavelength,(λ)=110 cm=1.1 m ----(1) Speed of light,(c)=3 x 108 m/sec ----(2) Let us…

Q: Explain the types of sound waves based on its frequency, Give an example for each,

A: 1.Infrasonic Waves (Infrasound) .Infrasonic sound has frequency below 20Hz. Example for this is…

Q: 9. A tuning fork makes a frequency of 440 Hz, if it is held in front of an open closed pipe. Assume…

A: Given data: frequency f = 440 Hz room temperature T = 20oC first position of standing waves l1 =…

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A: It generates shockwaves and wave fronts that characterize its movement through the air. To…

Q: 16. The sound of a loud rock concert (at 100 decibels) is how much louder than the sound of rustling…

A: Option E is correct answer

Q: 1. The speed-of a wave depends on the medium through which it travels. Order these from fastest to…

A: (1)  For sound waves The sound waves move through different mediums by vibrating the molecules in…

Speed of light

The speed at which the light travels in a vacuum is unbiased for both the source and inertial frame of reference of the observer. This was postulated by the physicist, Albert Einstein, by observing the theory of electromagnetism of Maxwell. Also, there was no evidence for the luminiferous aether, that is, the medium for the propagation of light where the electromagnetic field exists.