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Sneakatone
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Homework Statement
A point charge q2 = -4.5 μC is fixed at the origin of a co-ordinate system as shown. Another point charge q1 = 3.6 μC is is initially located at point P, a distance d1 = 7.3 cm from the origin along the x-axis
2) The charge q2 is now replaced by two charges q3 and q4 which each have a magnitude of -2.25 μC, half of that of q2. The charges are located a distance a = 1.7 cm from the oringin along the y-axis as shown. What is ΔPE, the change in potential energy now if charge q1 is moved from point P to point R?
Homework Equations
U= (kqQ)/r
The Attempt at a Solution
I don't know how to do the equations because 3 points confuse me.
but this is what I have.
(9E9*-2.25E-6*3.6E-6)(1/0.0749-1/0.073)=0.025
I got the 0.0749 from the hypotenuse and converted to meters.