Const A point charge q = 4.05 nC is placed at the origin, and a second point charge q2 = -2.90 nC is placed on the r-axis at z =+21.0 cm. A third point charge q3 = 2.10 nC is to be placed on the x-axis between qi and q2. (Take as zero the potential energy of the three charges when they are infinitely far apart.) Part A What is the potential energy of the system of the three charges if q3 is placed at z =+10.0 cm? Express your answer in joules. U = J

Physics for Scientists and Engineers: Foundations and Connections
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Chapter23: Electric Forces
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Const
A point charge q1 = 4.05 nC is placed at the origin,
and a second point charge q2 = -2.90 nC is placed
on the z-axis at z= +21.0 cm. A third point
charge q3 = 2.10 nC is to be placed on the r-axis
between q1 and q2. (Take as zero the potential
energy of the three charges when they are infinitely
far apart.)
%3D
Part A
What is the potential energy of the system of the three charges if q3 is placed at r = + 10.0 cm?
%3D
Express your answer in joules.
U =
J
Transcribed Image Text:Const A point charge q1 = 4.05 nC is placed at the origin, and a second point charge q2 = -2.90 nC is placed on the z-axis at z= +21.0 cm. A third point charge q3 = 2.10 nC is to be placed on the r-axis between q1 and q2. (Take as zero the potential energy of the three charges when they are infinitely far apart.) %3D Part A What is the potential energy of the system of the three charges if q3 is placed at r = + 10.0 cm? %3D Express your answer in joules. U = J
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