This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A -3.0-C point charge and a -9.0-C point charge are initially extremely far apart. How much work ... (Read 83 times)

Mimi

  • Hero Member
  • *****
  • Posts: 542
on: Jul 29, 2018
A -3.0-C point charge and a -9.0-C point charge are initially extremely far apart.
 
  How much work does it take to bring the -3.0-C charge to x = 3.0 mm, y = 0.00 mm and the -9.0-C charge to x = -3.0 mm, y = 0.00 mm? (k = 1/40 = 8.99  109 N  m2/C2)
  A) 40 J
  B) 81 J
  C) 27 J
  D) 6.8 J

Question 2

If a transparency sheet is rubbed with tissue and the transparency and the tissue are then held at rest a short distance from each other, the force between them will be
 
  A) a repulsive electric force.
  B) a repulsive magnetic force.
  C) an attractive electric force.
  D) an attractive magnetic force.
  E) zero.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

aham8f

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

C


Mimi

  • Hero Member
  • *****
  • Posts: 542
Reply #2 on: Jul 29, 2018
TY


aham8f

  • Sr. Member
  • ****
  • Posts: 336
Reply #3 on: Jul 29, 2018
You're welcome


« previous next »
 

Did you know?

People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

Did you know?

Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

Did you know?

The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

Did you know?

The horizontal fraction bar was introduced by the Arabs.

Did you know?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Measuring Electrical Charge Measuring Electrical Charge
Your Culture and Your Point of View Your Culture and Your Point of View
How Self-Fulfilling Stereotypes Work. How Self-Fulfilling Stereotypes Work.
Alzheimer’s medications work by intensifying the effect of acetylcholine at the receptor. Alzheimer’s medications work by intensifying the effect of acetylcholine at the receptor.
Set-Point Theory Set-Point Theory
Light in air is initially traveling parallel to the face AC of an equilateral triangular prism, ... Light in air is initially traveling parallel to the face AC of an equilateral triangular prism, ...
Video: Protein catabolism (Krebs cycle) and Protein anabolism (protein synthesis)

For a complete list of videos, visit our video library