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Simora [160]
3 years ago
13

How is a wavelength measured in a compressional wave?

Physics
1 answer:
GenaCL600 [577]3 years ago
6 0
A wavelength measurement is made by measuring the distance from a compression to the next compression or from a rarefaction to the next rarefaction . Let me know if I really help you my friend !
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A uniform plank of mass 10kg and length 10m rests on two supports, A and B as shown. A boy of weight 500N stands at a distance o
kifflom [539]

Answer:

U² = 142.86 N

U¹ = 357.14 N

Explanation:

Taking summation of the moment about point A, we get the following equilibrium equation: (taking clockwise direction as positive)

W(2\ m) - U^2(7\ m) = 0

where,

W = weight of boy = 500 N

U² = reaction ay B = ?

Therefore,

(500\ N)(2\ m)-(U^2)(7\ m)=0\\U^2=\frac{1000\ Nm}{7\ m}\\

<u>U² = 142.86 N</u>

Now, taking summation of forces on the plank. Taking upward direction as positive, for equilibrium position:

W-U^1-U^2=0\\500\ N - 142.86\ N = U^1\\

<u>U¹ = 357.14 N</u>

3 0
3 years ago
Need help with this plz
Lisa [10]

Answer:

1 - amplification

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Explanation:

7 0
3 years ago
Can someone please help me it would mean alot​
Lunna [17]
It’s the wavelength I believe
7 0
3 years ago
Which of these would be best explained by the Doppler effect? A) The change in frequency as you shorten a guitar string. B) The
Lady_Fox [76]

B)

Doppler effect is about the apparent change in frequency. The change in pitch heard as an ambulance approaches you is an example of this

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3 years ago
I'm willing to give a lot of points if u can help me out.
Anettt [7]

Answer:

i have absolutly no idea how to do it but i looked it up and your answer should be B. i could be wrong but thats what the web told me

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3 years ago
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