There are two point charges on the y-axis. One has a charge of -3.0 μC and is located 4.0 cm above the origin. The other has a charge of +5.0 μC and is located 7.0 cm above the origin. A third point charge with charge +4.0 μC is placed on the x-axis at a distance of 6.0 cm in the positive direction of the x-axis from the origin. What is the potential energy of this group of charges?

Two point charges are on the x-axis: +2.0 μC at 4.0 cm and -3.0 μC at 8.0 cm from the origin. Place a third charge on the y-axis 6.0 cm from the origin. Find the value of this charge to make the total electric potential energy of the system zero.

Two parallel metal plates are separated by a distance of 5.0 mm and have a potential difference of 100 V applied across them. A charged particle with a charge of +2.0 μC and mass of 1.25 x 10^-13 kg is released from rest at the positive plate. What is the velocity of the particle just before it hits the negative plate?

In the proximity of a uniformly charged sphere, the electric potential at point S is determined to be 60 V. Moving 3.0 μm away from point S to point T; the potential has decreased by 0.24 mV. Determine the distance between point S and the center of the sphere.

Calculate the potential difference between two points on the y-axis at -3 cm and 4 cm if you're at a science museum where a uniform electric field is demonstrated with a strength of Ē = (10,000î-40,000ĵ) V/m.