Describe how noise-cancelling headphones modify the sound waves around the user. Your answer should be three to four sentences in length and contain proper grammar and punctuation.

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Answer 1

Answer: Describe how noise-cancelling headphones modify the sound waves around the user. Your answer should be three to four sentences in length and contain proper grammar and punctuation? How Noise-canceling Headphones Work Noise-canceling Headphones Bose was the first company to introduce noise-canceling headphones. Bose was the first company to introduce noise-canceling headphones. PHOTO COURTESY CONSUMER PRODUCTS Unfortunately for music lovers, many types of ambient sounds can interfere with or even block the sounds coming through their headphones. If you have ever tried to listen to a CD or MP3 player on a plane, then you know the problem well: The roar of the engines makes it difficult to hear what's being piped through the speakers -- even when those speakers are situated in or on your ear. Fortunately, noise-canceling headphones can provide a more enjoyable listening experience. Noise-canceling headphones come in either active or passive types. Technically speaking, any type of headphones can provide some passive noise reduction. That's because the materials of the headphones themselves block out some sound waves, especially those at higher frequencies. The best passive noise-canceling headphones, however, are circum-aural types that are specially constructed to maximize noise-filtering properties. That means they are packed with layers of high-density foam or other sound-absorbing material, which makes them heavier than normal headphones. The tradeoff of all that extra weight is a reduction in noise of about 15 to 20 decibels (dB). But considering jet engines create 75 to 80 dB of noise inside the aircraft cabin, passive models have some serious limitations. That's where active noise-canceling headphones come in.

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Related Questions

If two waves interact in destructive interference, which of the following will be true regarding the new wave formed?

A. The new wave will produce a lower-pitched sound than the two original waves.

B. The new wave will produce a quieter sound than the two original waves.

C. The new wave will produce a higher-pitched sound than the two original waves.

D. The new wave will produce a louder sound than the two original waves.
Help plz

Answers

Answer:

Explanation:

The guy above is correct, it is B :)

I need help with question ii) Calculate the speed of these radio waves.
I don't know if I started it right.... I need help plss!!!

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Answer:

Speed = Wavelength x Wave Frequency. In this equation, wavelength is measured in meters and frequency is measured in hertz (Hz), or number of waves per second. Therefore, wave speed is given in meters per second, which is the SI unit for speed.

what are two roles of bacteria in a nitrogen cycle

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Answer:Nitrogen-fixing bacteria convert free nitrogen gas into nitrogen compounds. ... Bacterias that are decomposers recycle nitrogen compounds in the soil by breaking down animal wastes and dead plants and animals. 3. Other bacteria break down nitrogen compounds and release free nitrogen back into the air.

Explanation:

"The nitrogen fixing and bacteria of decay" is the two major role of bacteria in nitrogen cycle."

What is nitrogen fixing?

Nitrogen fixing can be define as the process in which It is possible to see nitrogen converting to nitrate.

What is bacteria of decay?

Bacteria of decay can be define as the process in which it is possible to see nitrogen waste converting to ammonia.

What is nitrogen?

Nitrogen can be referred as element which is kept in boron family in the periodic table.

Therefore, the two role of bacteria in a nitrogen cycle is bacteria of decay and nitrogen fixing.

To know more about nitrogen fixing click here.

https://brainly.com/question/1615727.

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which is the stronger acid?
A pH 1
B pH 4
C pH 8
D pH 13

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A ph 1 Jxdjjdxkxkxkslxlxkxjbx

Answer is A. pH1 ;):)

Determine the displacement and distance covered by a man if he walks 10 m north, turns east and walks 20m, and then turns left and walks 10 m.

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His displacement is about 44.72 and he covered 40m

Answer : his displacement is 44.72 . Explanation : He displaced around 44.72 and covered 40m

Scientists have sent an unmanned space vehicle to Mars to investigate the properties of the planet. Mars' gravitational field is 38% the strength of Earth's gravitational field. How will the weight and mass of the vehicle change on Mars?
A) The mass will increase, the weight will increase
B) The mass will decrease, the weight will decrease
C) The mass will remain the same, the weight will decrease
D) The mass will increase, the weight will remain the same

Answers

C because the mass doesn't change, the vehicle doesn't shrink, but the weight decreases.

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