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Author Question: How large a force is necessary to stretch a 2.0-mm diameter copper wire (Y = 11 1010 N/m2) by 1.0? ... (Read 95 times)

savannahhooper

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on: Jul 28, 2018
How large a force is necessary to stretch a 2.0-mm diameter copper wire (Y = 11  1010 N/m2) by 1.0?
 a. 2.1 kN
  b. 3.5 kN
  c. 6.9 kN
  d. 11 kN
  e. 5.4 kN

Question 2

A 20-m long steel wire (cross-section 1.0 cm2, Young's modulus 2.0  1011 N/m2), is subjected to a load of 25 000 N. How much will the wire stretch under the load?
 a. 0.25 cm
  b. 2.5 cm
  c. 12.5 cm
  d. 25 cm
  e. 1.25 cm


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cici

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Reply #1 on: Jul 28, 2018
Answer to Question 1

b

Answer to Question 2

b


savannahhooper

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Reply 2 on: Jul 28, 2018
Gracias!

lkanara2

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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