Author Question: What is the wavelength (angstroms) of a photon that has an energy of 5.69 10-17 J? A) 454 ... (Read 84 times)

kshipps

  • Hero Member
  • *****
  • Posts: 571
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

  • Sr. Member
  • ****
  • Posts: 345
Answer to Question 1

B

Answer to Question 2

E



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

kshipps

  • Hero Member
  • *****
  • Posts: 571
Both answers were spot on, thank you once again



macagn

  • Sr. Member
  • ****
  • Posts: 345

 

Did you know?

In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

Did you know?

Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

Did you know?

Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.

Did you know?

Thyroid conditions may make getting pregnant impossible.

Did you know?

Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.

For a complete list of videos, visit our video library