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Author Question: A large 75-kg lighting fixture can be hung from wires of identical size and shape made of aluminum, ... (Read 42 times)

Destiiny22

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on: Jul 29, 2018
A large 75-kg lighting fixture can be hung from wires of identical size and shape made of aluminum, brass, or copper. The values of Young's modulus for these metals are 0.70  1011 Pa (aluminum), 0.91  1011 (brass), and 1.1  1011 (copper).
 
  Which wire would stretch the least distance?
  A) brass B) copper
  C) aluminum D) They will all stretch the same distance.

Question 2

A hollow sphere of negligible mass and radius R is completely filled with a liquid so that its density is . You now enlarge the sphere so its radius is 2R and completely fill it with the same liquid. What is the density of the enlarged sphere?
 
  A) 8
  B) 4
  C) /2
  D)
  E) /8
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wuly

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Reply #1 on: Jul 29, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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Destiiny22

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Reply #2 on: Jul 29, 2018
Thanks


wuly

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Reply #3 on: Jul 29, 2018
Welcome :)


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