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What was the electron initial speed

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Reference no: EM132104030

A 2.6 mm -diameter sphere is charged to -4.6 nC . An electron fired directly at the sphere from far away comes to within 0.36 mm of the surface of the target before being reflected.

  • What was the electron's initial speed.
  • At what distance from the surface of the sphere is the electron's speed half of its initial value.
  • What is the acceleration of the electron at its turning point.

Reference no: EM132104030

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