An Asteroid of Mass $58,000 \mathrm {~kg}$ Carrying a Negative Charge Of

An asteroid of mass $58,000 \mathrm {~kg}$ carrying a negative charge of $15 \mu \mathrm { C }$ is $180 \mathrm {~m}$ from a second asteroid of mass $52,000 \mathrm {~kg}$ carrying a negative charge of $11 \mu \mathrm { C }$ . What is the magnitude of the net force the asteroids exert upon each other, assuming we can treat them as point particles? $\left( G = 6.67 \times 10 ^ { - 11 } \right.$ $\mathrm { N } \cdot \mathrm { m } ^ { 2 } / \mathrm { kg } ^ { 2 } , k = 1 / 4 \pi \varepsilon _ { 0 } = 8.99 \times 10 ^ { 9 } \mathrm {~N} \cdot \mathrm { m } ^ { 2 } / \mathrm { C } ^ { 2 }$ )

A) $570,000 \mathrm {~N}$
B) $0.000040 \mathrm {~N}$
C) $0.0062 \mathrm {~N}$
D) $510,000 \mathrm {~N}$