1. The problem statement, all variables and given/known data A point charge of 2.0 10-9 C is located at the origin. How much work is required to bring a positive charge of 4.0 10-9 C from infinity to the location x = 30.0 cm? and it requests the answer in J 2. Relevant equations W=-q2(delta)V DeltaV = Ke q1/d where delta v is potential difference, W is work, q2 and q1 are the charges, Ke is coulombs constant, and d is distance 3. The attempt at a solution I plugged in all of the variables using 4.0 *10 ^ -9 as my q1 and 2.0*10^-9 as my q2 and that was wrong so i switched them.. again wrong..