1. Compute the electric eld at the point A in the middle between two charges (one posmve, one negative) separated by the 2-m_ distance. Show your work. For afull credit Cite nun-Ibers of relevant formulas and prob/ems from the notes. 7- -. . \\ 91 = +3nC A Q2 2 3nC 2. Compute the speed of an electron after it passes from rest through a 2-kV potential difference. Show your work. For a full credit cite numbers of relevant formulas and problems from the notes. 3. What will be the current through a 400-111 long copper wire, 2mm in diameter, that accidently connects a 240-V power line to thf ground? Show your work. For a t]! credit cite numbers of relevant formulas and problems from the notes. 4. The electric company charges $0.50 per kilowatt hour. How much will it cost per month (30 days) to use an electric heater that draws 20A current from lZOV line 24 hours a day? Show your work. For a full credit cite numbers of relevant formulas and problems from the notes