An atomic nucleus has a charge of +40e. The force on an electron placed 1.5 *10-9 m from the nucleus is
A) 60 *10-9 N.
B) 26 * 10-9 N.
C) 4.1 *10-9 N.
D) 26* 109 N.
E) 60 * 109 N.
Correct Answer:
Verified
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