|Sep17-08, 02:50 PM||#1|
point charge attractioning a positive charge from infinity to 30cm
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
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..
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