An infinite sheet of charge that has a surface charge density of 36 nC/m2 lies in the yz plane, passes through the origin, and is at a potential of 1.5 kV . A long wire having a linear charge density of 57 nC/m lies parallel to the y axis and intersects the x axis at (4.1 m, 0, 0). What is the potential energy of a 2.4 nC charge placed at (2.3 m, 0, 0) ? The value of the permittivity