If a = 3.0 mm, b = 4.0 mm, Q1 = ?60 nC, Q2 = 80 nC, and q = 30 nC in the figure, what is the magnitude of the electric force on q?
a.
1.4 N
b.
1.0 N
c.
1.7 N
d.
2.0 N
e.
0.50 N
b
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Fill in the blank(s) with correct word
The letter N is symmetric (in the sense defined in this chapter) for rotations around an axis going through its center that points in which of the following directions?
A. 
B. 
C. Perpendicular to the plane of the letter
D. A and C
E. A, B, and C