If the plane x = 4 m is an equipotential surface, in which of the ...

[humphriesbr@me.com]

If the plane x = 4 m is an equipotential surface, in which of the following directions can the electric field be in the region immediately adjacent to this plane?
 a. the positive y direction
  b. both the positive and negative z directions
  c. the positive x direction
  d. more than one of these choices

Question 2

A 0.60-kg rock is swung in a circular path and in a vertical plane on a 0.25-m length string. At the top of the path, the angular speed is 12.0 rad/s. What is the tension in the string at that point?
 a. 7.9 N
  c. 22 N
  b. 16 N
  d. 6.5 N

[swimkari]

Answer to Question 1

C

Answer to Question 2

B

[humphriesbr@me.com]

Gracias!

[TheNamesImani]

TYSM