Author Question: An electron moving in the +y direction, at right angles to a magnetic field, experiences a magnetic ... (Read 49 times)

jeatrice

  • Hero Member
  • *****
  • Posts: 543
An electron moving in the +y direction, at right angles to a magnetic field, experiences a magnetic force in the -x direction. The direction of the magnetic field is in the
 
  A) -x direction.
  B) +x direction.
  C) +y direction.
  D) -z direction.
  E) +z direction.

Question 2

The power of a lens is 4.0 diopters and its diameter is 5.0 cm. What is the focal length of this lens?
 
  A) 25 cm
  B) 55 cm
  C) 10 cm
  D) 0.25 cm
  E) 2.5 cm


macagn

  • Sr. Member
  • ****
  • Posts: 345
Answer to Question 1

E

Answer to Question 2

A



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

Did you know?

Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Did you know?

Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

For a complete list of videos, visit our video library