The hydrogen atom consists of a proton of mass 1.67 × 10-27 kg and an orbiting electron of mass 9.11 × 10-31 kg. In one of its orbits, the electron is 5.3 × 10-11 m from the proton. What is the mutual attractive gravitational force between the electron and proton?
A) 1.8 × 10-47 N
B) 3.6 × 10-47 N
C) 5.4 × 10-47 N
D) 7.0 × 10-47 N
E) 9.3 × 10-47 N
Correct Answer:
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