Light waves are A) beams of moving electrons and other charged ...

[Haya94]

Light waves are
 
  A) beams of moving electrons and other charged particles.
  B) beams of moving atoms.
  C) traveling disturbances in an electromagnetic field.
  D) traveling disturbances in the ether.
  E) traveling disturbances in the air.

Question 2

You throw a ball straight upward. While it is moving upward, the net force on the ball is
 
  A) in the upward direction.
  B) in the horizontal direction.
  C) directed oppositely to the acceleration.
  D) zero.
  E) in the downward direction.

[Ahnyah]

Answer to Question 1

C

Answer to Question 2

E

[Haya94]

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