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Author Question: What is the wavelength (angstroms) of a photon that has an energy of 5.69 10-17 J? A) 454 ... (Read 15 times)

kshipps

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on: Aug 27, 2018
What is the wavelength (angstroms) of a photon that has an energy of 5.69  10-17 J?
 
  A) 454 angstroms
  B) 34.9 angstroms
  C) 6.89  1015 angstroms
  D) 3.66  109 angstroms
  E) 3.50  10-9 angstroms

Question 2

As a polymer becomes more crystalline, ________.
 
  A) its melting point decreases
  B) its density decreases
  C) its stiffness decreases
  D) its yield stress decreases
  E) None of the above is correct.


macagn

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

B

Answer to Question 2

E


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kshipps

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Reply #2 on: Aug 27, 2018
Both answers were spot on, thank you once again


macagn

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Reply #3 on: Aug 27, 2018
Great! Please up vote :D


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