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aksik [14]
3 years ago
12

What happens to the sound of a train whistle as a train approaches and passes you? why?

Physics
1 answer:
omeli [17]3 years ago
8 0
This is called, The Doppler effect.

In short terms, when the trains is farther away the wavelength of the whistles sound are longer and more separate from each other, and more farther away from you, as it gets closer to you, the wavelengths start getting shorter and more louder the closer it gets to you. Basically the <span>wavelengths change because of the motion of the source.</span>
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5 0
3 years ago
Which of the following is an example if harmonic motion?
german

Answer:

"A pendulum swinging back and forth" is an example of harmonic motion

X = Xo cos ω t

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3 0
2 years ago
A bullet with a mass of 0.02 kg is fired horizontally into a block of wood hanging on a string. The bullet sricks in the wood an
djyliett [7]

Answer:

u= 20.09 m/s

Explanation:

Given that

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7 0
3 years ago
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dangina [55]
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3 0
3 years ago
Read 2 more answers
What is the critical angle of light traveling from benzene (n=1.501) into air?
Taya2010 [7]
The critical angle formula should be: sin^-1(1/n) 

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4 0
3 years ago
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