In free space, the magnitude of the electric field outside an insulating sphere at a distance 14.50 meters from the center of the insulating sphere is 4.89 newtons per coulomb. At a point 6.50 meters from the center of the insulating sphere, inside the insulating sphere, the magnitude of the electric field is 2.39 newtons per coulomb. Find the radius, in meters, of the insulating sphere.

In free space, the magnitude of the electric field outside an insulating sphere at a distance 14.50 meters from the center of the insulating sphere is 4.89 newtons per coulomb. At a point 6.50 meters from the center of the insulating sphere, inside the insulating sphere, the magnitude of the electric field is 2.39 newtons per coulomb. Find the radius, in meters, of the insulating sphere.

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