1/If an electron travels 0.200 m from an electron gun to a TV screen in 12.0 ns, what voltage (in V) was used to accelerate it? (Note that the voltage you obtain here is lower than actually used in TVs to avoid the necessity of relativistic corrections.) ________V

Two point charges q, = +2.09 nC and q, = -2q, are located along the x-axis as shown in the diagram below. The distance between the two charges is d = 1.15 m. (a) Which of the following graphs correctly represents the total electric potential versus x for the region -2.50 m