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

Author Question: An originally neutral electroscope is briefly touched with a positively charged glass rod. The ... (Read 51 times)

charchew

  • Hero Member
  • *****
  • Posts: 579
An originally neutral electroscope is briefly touched with a positively charged glass rod. The electroscope
 
  A)
 
  remains neutral.
  B)
 
  becomes negatively charged.
  C)
 
  becomes positively charged.
  D)
 
  could become either positively or negatively charged, depending on the time of contact.

Question 2

What is the cutoff frequency for a metal surface that has a work function of 5.42 eV?
 
  A)
 
  1.31  1015 Hz
  B)
 
  2.01  1015 Hz
  C)
 
  3.01  1015 Hz
  D)
 
  5.02  1015 Hz
  E)
 
  6.04  1015 Hz



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

allisonblackmore

  • Sr. Member
  • ****
  • Posts: 330
Answer to Question 1

C

Answer to Question 2

A





 

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Did you know?

More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

For a complete list of videos, visit our video library