A ring and a disk both are centered at (-3, 8, -7) and are both lying on the plane y = 8. The ring has a radius of 6 m, while the disk has a radius of 5 m, so that the ring is around the disk. Determine the magnitude of the electric field in kV/m at point (-3, -5, -7) if the ring has a total charge of -9 mC and the disk has a total charge of 9 mC. All coordinates are measured in meters.

A ring and a disk both are centered at (-3, 8, -7) and are both lying on the plane y = 8. The ring has a radius of 6 m, while the disk has a radius of 5 m, so that the ring is around the disk. Determine the magnitude of the electric field in kV/m at point (-3, -5, -7) if the ring has a total charge of -9 mC and the disk has a total charge of 9 mC. All coordinates are measured in meters.

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