« previous next »

Author Question: What is the wavelength (angstroms) of a photon that has an energy of 5.69 10-17 J? A) 454 ... (Read 68 times)

kshipps

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

  • Sr. Member
  • ****
  • Posts: 345
Reply #1 on: Aug 27, 2018
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
Reply #2 on: Aug 27, 2018
Both answers were spot on, thank you once again


macagn

  • Sr. Member
  • ****
  • Posts: 345
Reply #3 on: Aug 27, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

Did you know?

Approximately 25% of all reported medication errors result from some kind of name confusion.

Did you know?

Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

Did you know?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

Did you know?

Every flu season is different, and even healthy people can get extremely sick from the flu, as well as spread it to others. The flu season can begin as early as October and last as late as May. Every person over six months of age should get an annual flu vaccine. The vaccine cannot cause you to get influenza, but in some seasons, may not be completely able to prevent you from acquiring influenza due to changes in causative viruses. The viruses in the flu shot are killed—there is no way they can give you the flu. Minor side effects include soreness, redness, or swelling where the shot was given. It is possible to develop a slight fever, and body aches, but these are simply signs that the body is responding to the vaccine and making itself ready to fight off the influenza virus should you come in contact with it.

A Mitochondrion Converts Energy from Fuel Molecules into ATP A Mitochondrion Converts Energy from Fuel Molecules into ATP
1-16 The Sun’s Daily Path and the Energy It Deposits Here 1-16 The Sun’s Daily Path and the Energy It Deposits Here
Energy Metabolism During Exercise Energy Metabolism During Exercise
Rapid growth in the use of alternative energy seems impressive Rapid growth in the use of alternative energy seems impressive
The flow of energy and the cycling of materials maintain nature’s organization The flow of energy and the cycling of materials maintain nature’s organization
The surface temperature of the star is 6000 K. At what wavelength is its light output a maximum The surface temperature of the star is 6000 K. At what wavelength is its light output a maximum
Video: Physiology of Asthma

For a complete list of videos, visit our video library