A metal sphere of radius 10 cm carries a charge of +2.0 C. What ...

[silviawilliams41]

A metal sphere of radius 10 cm carries a charge of +2.0 C. What is the magnitude of the electric field 5.0 cm outside the sphere's surface?
 
  A)
 
  4.0  105 N/C
  B)
 
  8.0  105 N/C
  C)
 
  4.2  106 N/C
  D)
 
  4.0  107 N/C
  E)
 
  8.0  107 N/C

Question 2

Consider ice cubes floating in a glass of water. What will happen to the level of the water as the ice melts?
 
  What will be an ideal response?

[medine]

Answer to Question 1

B

Answer to Question 2

The water level remains unchanged since the ice displaces its own weight of water.