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…

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 =…

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

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: 8. A kid on a playground swing makes 6 complete to-and-fro swings each 30 seconds. (a) The frequency…

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Q: A lightening strike 2 km away creates a sound of thunder by making a shock wave in air from the…

A: Distance d = 2 km speed of sound = 340 m/s speed of light = 3 x 10^8 m/s so when thandurstroam took…

Q: The sound passes from one medium to .4 another its propagation . is *. different

A:

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: 11. What happens to sound waves when the doppler effect occurs? What happens to light waves when the…

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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: T is the temperat 331.5+(23x0.6) ist %3D 5. How does your calculation for the speed of sound compare…

A: 5) The speed of sound is 331.5 m/s and the speed of sound in the room is 345.3 m/s.

Q: Adding two speakers. Suppose a speaker is playing music at 70 decibels. If two more identical…

A: The addition of sound intensity in decibel follows the relation; Itotal=10log10∑i=1n10Ii10

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

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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: A sound wave is transmitted through the water from a submarine and is reflected off another…

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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: 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: 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: BELIVEWORKSHEETS 6. Sound waves travel 4000 m in 12.5 seconds. The frequency of the wave is 530.5…

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Q: What are the waves and what are their characteristics ? What is the difference between sound waves…

A: Waves are disturbances that travel through a fluid medium. Several common wave characteristics…

Q: Sound waves cause molecules to vibrate and bump into one another. For sound to travel, there must be…

A: From the information provided we can understand that the speed of sound is indirectly proportional…

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…

Q: Start with a wire at rest freely hanging between two supports. Mark a point on it, start your movie…

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Q: The figure has a moving sound source S, that is emitting a frequency. There are 4 stationary sound…

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Q: [1] What do sound and light have in common? [2] In your own words, describe how sounds are made.…

A: Light and sound both are different forms of energy. Both are waves in nature. Wave is nothing but…

Q: frequency?

A:

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: A water wave passes a boat every 31 seconds. What is the frequency of the waves in Hz? Round your…

A: frequency means that number of waves that passes the point in unit time.

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 =…

Q: 7. A small tube open at both ends resonate at frequencies: 391 Hz, 782 Hz, 1172 Hz what is the…

A: The small tube open at both ends produces standing waves at frequencies 391 Hz, 782 Hz and 1172 Hz…

Q: Which of the following sketches best illustrates the sound waves produced by a jet travelling at…

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

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.