A 2.6mm-diameter sphere is charged to -4.5nC. An electron fired directly at the sphere from far awaycomes to within 0.38mm of the surface of the target before being reflected. (A) What was the electron'sinitial speed? (B) At what distance from the surface of the sphere is the electron's speed half of its initialvalue? (C) What is the acceleration of the electron at its turning point?A 2.6 mm -diameter sphere is charged to -4.5 nC. An electron fired directly at the sphere from faraway comes to within 0.38 mm of the surface ofthe target before being reflected.

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