Author Question: The source of electromagnetic waves is vibrating A) electric charges. B) atoms. C) molecules. ... (Read 69 times)

Bernana

  • Hero Member
  • *****
  • Posts: 530
The source of electromagnetic waves is vibrating
 
  A) electric charges.
  B) atoms.
  C) molecules.
  D) energy fields.

Question 2

If an electric charge is rapidly shaken up and down,
 
  A) sound is emitted.
  B) light is emitted.
  C) electron excitation occurs.
  D) an electromagnetic wave is produced.



uniquea123

  • Sr. Member
  • ****
  • Posts: 311
Answer to Question 1

Answer: A

Answer to Question 2

Answer: D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.

Did you know?

In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

Did you know?

The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

Did you know?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

For a complete list of videos, visit our video library