« previous next »

Author Question: Three charges are placed as follows along the x- and y-axis of an xy-coordinate system: q1 = 2.00 C ... (Read 90 times)

Jkov05

  • Hero Member
  • *****
  • Posts: 556
on: Jul 29, 2018
Three charges are placed as follows along the x- and y-axis of an xy-coordinate system: q1 = 2.00 C at x1 = 0 m, q2 = -4.00 C at x2 = 3.00 m, and q3 = 6.00 C at y = 4.00 m. What is the electric potential energy of this system of charges?
 
  A) -40.2 mJ
  B) 40.2 mJ
  C) -94.2 mJ
  D) 94.2 mJ
  E) 0 J

Question 2

If the threshold wavelength to dislodge electrons from a metal is 373. nm, what is the work function?
 
  What will be an ideal response?


FergA

  • Sr. Member
  • ****
  • Posts: 352
Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

3.33 eV


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

The horizontal fraction bar was introduced by the Arabs.

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Acetylcholine receptors and the autonomic nervous system Acetylcholine receptors and the autonomic nervous system
A Microelectromechanical system A Microelectromechanical system
The location of the major limbic system structures. In general, they are arrayed near the midline in ... The location of the major limbic system structures. In general, they are arrayed near the midline in ...
How to solve a linear system by the substitution method How to solve a linear system by the substitution method
Obliquity "Tilt of Earth on its axis" Obliquity "Tilt of Earth on its axis"
Limbic System Components Limbic System Components
Video: Gastrin (protein digestion)

For a complete list of videos, visit our video library