Homework Answers
A,. Electric potentail V = Kq/r
so V = 9e9 *1.6*10^-19/2.6*10^-15
V = 5.53*10^5 Volts
b. potentail enrnergy U = Vq
U = 5.53*10^5 * 1.6*10^-19
U = 8.848 *10^-14 J
(a) V = kq/r
=> V = 8.98 * 10^9 * 1.67 * 10^(-19) /(2.6 * 10^(-15))
=> V = 5.7679 * 10^5 J/C
(b) U = Kq1q2/r
=> U = 8.98 * 10^9 * 1.67 * 10^(-19)* 1.67 * 10^(-19)/(2.6 * 10^(-15))
=> U = 9.63 * 10^(-14) J
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