Author Question: A 3.0-C positive point charge is located at the origin and a 2.0 C positive point charge is located ... (Read 86 times)

cherise1989

  • Hero Member
  • *****
  • Posts: 555
A 3.0-C positive point charge is located at the origin and a 2.0 C positive point charge is located at x = 0.00 m, y = 1.0 m. Find the coordinates of the point where the net electric field strength due to these charges is zero.
 
  A) x = 0.00 m, y = 0.55 m
  B) x = 0.00 m, y = 0.67 m
  C) x = 0.00 m, y = 1.5 m
  D) x = 0.00 m, y = 0.60 m

Question 2

Upon being struck by 240-nm photons, a metal ejects electrons with a maximum kinetic energy of
 
  What is the work function of this metal? (h = 6.626  10-34 J  s, c = 3.00  108 m/s,
  1 eV = 1.60  10-19 J)
  A) 3.73 eV
  B) 3.13 eV
  C) 4.33 eV
  D) 4.92 eV



sultansheikh

  • Sr. Member
  • ****
  • Posts: 335
Answer to Question 1

A

Answer to Question 2

A



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

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.

For a complete list of videos, visit our video library