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Author Question: A stonecutter's chisel has an edge area of 0.7 cm2 . If the chisel is struck with a force of 42 N, ... (Read 129 times)

jerry coleman

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on: Jul 28, 2018
A stonecutter's chisel has an edge area of 0.7 cm2 . If the chisel is struck with a force of 42 N, what is the pressure exerted on the stone?
 a. 600 N/m2
  b. 30 000 N/m2
  c. 300 000 N/m2
  d. 600 000 N/m2
  e. 6 000 N/m2

Question 2

A steel wire in a piano has a length of 0.700 m and a mass of 4.30 grams. To what tension must this wire be stretched to make the fundamental frequency correspond to middle C, (fc = 261.6 Hz)?


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sultana.d

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

D

Answer to Question 2

824 N


jerry coleman

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Reply #2 on: Jul 28, 2018
Thanks


sultana.d

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Reply #3 on: Jul 28, 2018
Welcome :)


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