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*Chapter 23, Problem 038 GO
In part (a) of the figure an electron is shot directly away from a uniformly charged
plastic sheet, at speed vs = 3.90 x 105 m/s. The sheet is nonconducting, flat, and
very large. Part (b) of the figure gives the electron's vertical velocity component v
versus time t until the return to the launch point. What is the sheet's surface charge
density?
28.0
t (ps)
(b)
(a)
Number
1 Units
(s/w 01) 4

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