Coulomb's Law: The zirconium nucleus contains 40 protons, and an electron is 1.0 nm from the nucleus. What is the electric force on the electron due to the nucleus? ( e = 1.60 × 10-19 C, k = 1/4??0 = 9.0 × 109 N ? m2/C2)

A. 2.9 nN
B. 1000 C
C. 3.7 nN
D. 6.8 nN
E. 9.2 nN


Answer: E

Physics & Space Science

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