This topic contains a solution. Click here to go to the answer

Author Question: The normal U.S. average annual radiation dose per person is about how many REM? What will be an ... (Read 60 times)

Deast7027

  • Hero Member
  • *****
  • Posts: 538
The normal U.S. average annual radiation dose per person is about how many REM?
 
  What will be an ideal response?

Question 2

A photon cannot create an electron pair unless its frequency is
 
  A) less than 1.24  1020 Hz.
  B) less than 2.47  1020 Hz.
  C) greater than 1.24  1020 Hz.
  D) greater than 2.47  1020 Hz.
  E) infinite.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

leannegxo

  • Sr. Member
  • ****
  • Posts: 374
Answer to Question 1

0.20

Answer to Question 2

C




Deast7027

  • Member
  • Posts: 538
Reply 2 on: Jul 27, 2018
Wow, this really help


bbburns21

  • Member
  • Posts: 336
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

Did you know?

There are more sensory neurons in the tongue than in any other part of the body.

Did you know?

Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.

Did you know?

The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.

Did you know?

The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

For a complete list of videos, visit our video library