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Two insulating plates are both uniformly charged in such a way that the potential difference between them is \( V_{2}-V_{1}= \) \( 20 \mathrm{~V} \). (i.e., plate 2 is at a higher potential). The plates are separated by \( d=0.1 \mathrm{~m} \) and can be treated as infinitely large. An electron is released from rest on the inner surface of plate 1. What is its speed when it hits plate \( 2 ?\left(e=1.6 \times 10^{-19} \mathrm{C}, m_{e}=\right. \) \( \left.9.11 \times 10^{-31} \mathrm{~kg}\right) \)
(A) \( 32 \times 10^{-19} \mathrm{~m} / \mathrm{s} \)
(B) \( 7.02 \times 10^{12} \mathrm{~m} / \mathrm{s} \)
(C) \( 2.65 \times 10^{6} \mathrm{~m} / \mathrm{s} \)
(D) \( 1.87 \times 10^{6} \mathrm{~m} / \mathrm{s} \)
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