A $- 6.5 - \mu C$ Point Charge Is $8.0 \mathrm {~cm}$

Short Answer

A $- 6.5 - \mu C$ point charge is $8.0 \mathrm {~cm}$ from a $- 17 - \mu \mathrm { C }$ charge. What is the electric energy density at the point midway between them? $\left( \varepsilon _ { 0 } = 8.85 \times 10 ^ { - 12 } \mathrm { C } ^ { 2 } / \mathrm { N } \cdot \mathrm { m } ^ { 2 } , k = 1 / 4 \pi \varepsilon _ { 0 } = 9.0 \right.$ $\left. \times 10 ^ { 9 } \mathrm {~N} \cdot \mathrm { m } ^ { 2 } / \mathrm { C } ^ { 2 } \right)$