Author Question: What is the wavelength (angstroms) of a photon that has an energy of 5.69 10-17 J? A) 454 ... (Read 88 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?

Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).

Did you know?

The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.

Did you know?

Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

For a complete list of videos, visit our video library