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Earth has a net charge that produces an electric field of approximately 150 N/C downward at its surface.
A) Find the magnitude of the excess charge on the earth, noting the electric field of a conducting sphere is equivalent to a point charge at its center in C?
B) Find what magnitude of acceleration with the field produce on a free electron near the Earth's surface in m/s2?
C) Find what mass object with a single extra electron will have its weight supported by this field in kilogram?
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