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Crazy boy [7]
3 years ago
10

Urgent!!!!!! 20 points!!!!!! how are the speed, wavelength and frequency of a wave related

Physics
1 answer:
zheka24 [161]3 years ago
6 0

Answer:

The higher the frequency, the shorter the wavelength. Because all light waves move through a vacuum at the same speed, the number of wave crests passing by a given point in one second depends on the wavelength. Speed shows how long it takes for wavelengths to travel.

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What is the source of all electromagnetic waves?
kherson [118]

Answer:

Accelerating charges.

Explanation:

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To produce electromagnetic waves, electric and magnetic fields must be vibrating.

An electric charge produced when vibrating under voltage will produce electromagnetic waves. This is the same for all sources of these waves.

The sun produces electromagnetic waves. A lot of human activities also does this.

6 0
3 years ago
A heat engine exhausts 8900 j of heat while performing 2800 j of useful work. part a what is the efficiency of this engine?
Anuta_ua [19.1K]
Given: Heat Qout means useful work = 2800 J

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               Efficiency = 31.46%


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3 years ago
If you know this please help me !!
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