A charge (uniform linear density = 9.0 nC/m) is distributed along the x axis from x = 0 to x = 3.0 m. Determine the magnitude of the electric field at a point on the x axis with x = 4.0 m
a. 81 N/C
b. 74 N/C
c. 61 N/C
d. 88 N/C
e. 20 N/C
C
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B. 
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