a
a) v0 = 9 x 108cm/s = 9 x 10 6 m/s
E = 1.00 x 103 N/C
force F = e E
when it stops v = 0
x = 0.23m = 23 cm
b)
c) if x = 3 mm = 3x 10-3m
v = 8.94 x 106 m/s
percentage loss in kinetic energy
= 1.3%
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