(Solved): A uniform electric field exists in a region between two oppositely charged pl ...

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A uniform electric field exists in a region between two oppositely charged plates. An electron is released from rest at the surface of the negative plate and strikes the surface of the opposite plate, $$2.0\mathrm{cm}$$ away, in a time $$t=1.5\times 10^{?8}$$ seconds. What is the magnitude of the electric field $$\vec{E}$$ ? $$\begin{array}{l}?1.0\times 10^5\mathrm{N}/\mathrm{C}\\ \text{ zero }\\ +1.0\times 10^5\mathrm{N}/\mathrm{C}\\ +1.4\times 10^5\mathrm{N}/\mathrm{C}\\ 1012\mathrm{N}/\mathrm{C}\end{array}$$