Coulomb's law for the magnitude of the force F between two particles with charges Q and Q′ separated by a distance d is |F|=K|QQ′|d2, where K=14πϵ0, and ϵ0=8.854×10−12C2/(N⋅m2) is the permittivity of free space. Consider two point charges located on the x axis: one charge, q1 = -15.0 nC , is located at x1 = -1.730 m ; the second charge, q2 = 39.0 nC , is at the origin (x=0.0000). Coulomb's law for the magnitude of the force F between two particles with charges Q and Q′ separated by a distance d is |F|=K|QQ′|d2, where K=14πϵ0, and ϵ0=8.854×10−12C2/(N⋅m2) is the permittivity of free space. Consider two point charges located on the x axis: one charge, q1 = -15.0 nC , is located at x1 = -1.730 m ; the second charge, q2 = 39.0 nC , is at the origin (x=0.0000).