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Author Question: A wire of diameter 1.0 mm and length 3.5 m stretches 3.5 mm when 8.0 kg is hung from it. (a) What ... (Read 108 times)

bobbie

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on: Jul 27, 2018
A wire of diameter 1.0 mm and length 3.5 m stretches 3.5 mm when 8.0 kg is hung from it.
 
  (a) What is the Young's modulus for the wire?
  (b) What is the effective spring constant for the stretching wire?

Question 2

Two coherent sound waves will destructively interfere when the path difference is the wavelength times what?
 
  A) half an even integer
  B) an integer
  C) half an odd integer
  D) an odd integer


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Jane

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Reply #1 on: Jul 27, 2018
Answer to Question 1

(a) 1.0  1011 N/m2
(b) 2.2  104 N/m

Answer to Question 2

C


bobbie

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Reply 2 on: Jul 27, 2018
Wow, this really help

frankwu0507

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Reply 3 on: Yesterday
:D TYSM

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