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Question

Two electrons are a certain distance apart from one another. What is the order of magnitude of the ratio of the electric force between them to the gravitational force between them?
  1. 108:1
  2. 1028:1
  3. 1031:1
  4. 1042:1

A
1042:1
B
1028:1
C
1031:1
D
108:1
Solution
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