003 (part 1 of 2) 10.0 points
Consider three charges arranged as shown.
5.2 $\mu$C
+
1.8 $\mu$C
-4.6 $\mu$C
(+)
6.7 cm 4.9 cm
What is the magnitude of the electric field
strength at a point 1.8 cm to the left of the
middle charge? The Coulomb constant is
8.99 x $10^{9}$ N $\cdot$ m²/C².
Answer in units of N/C.