An electron is sent at high speed toward a gold nucleus (charge +79e). What is the electrical force acting on the electron when it is 3.0 × 10^-13 m away from the gold nucleus? (e = 1.6 × 10^-19 C, ke = 8.99 × 10^9 N•m2/C2)
a. 2.1 × 10^-6 N
c. 0.20 N
b. 2.0 × 10^-4 N
d. 20 N
C
Physics & Space Science
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