Author Question: The electric field between oppositely-charged parallel plates is A) uniform. B) stronger at the ... (Read 87 times)

moongchi · **on:** Jul 29, 2018

The electric field between oppositely-charged parallel plates is

A) uniform.
B) stronger at the ends.
C) composed of field lines curved in opposite directions.
D) none of the above

Question 2

Four traveling waves are described by the following equations, where all quantities are measured in SI units and y represents the displacement.

I: y = 0.12 cos(3x + 2t)
II: y = 0.15 sin(6x - 3t)
III: y = 0.23 cos(3x + 6t)
IV: y = -0.29 sin(1.5x - t)
Which of these waves have the same speed?
A) I and III
B) I and IV
C) II and III
D) I and II
E) III and IV