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Author Question: Express the result of the following calculation, in scientific notation, to the proper number of ... (Read 140 times)

notis

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on: Jul 27, 2018
Express the result of the following calculation, in scientific notation, to the proper number of significant figures: ((395600.1)/(6.72)) + 19.
 
  What will be an ideal response?

Question 2

Imagine hitting a heavy anvil with a hammer. The hammer is in contact with the metal for a short period of time. How do you suppose the time of contact depends upon how hard you hit the anvil (i.e.
 
  , does a hard hit remain in contact much longer or shorter than a light tap?) It is reasonable to assume Hooke's law of elasticity to hold.


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aloop

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

5.9  104

Answer to Question 2

The anvil has an effective elastic constant which is relatively large. The time of contact does NOT depend upon the strength of the blow. The PERIOD of oscillation (the time in contact is half a period) is independent of the amplitude for SHM.


notis

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Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

covalentbond

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Reply 3 on: Yesterday
Excellent

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