How much work is required to set up the four-charge configuration of the figure if q = 1.61 pC, a = 60.4 cm, and the particles are initially infinitely far apart and at rest?

This question has to do with the diagram shown, on which I have placed an electron at the origin. The grid spacing is 1 Angstrom per small square. Now place an atomic nucleus with 13 protons on positive x-axis, at x = 4.2 Angstroms. How much work did it take you to bring this nucleus in from 1 m away?     A. 53.4 eV   B. 35.6 eV   C. 44.5 eV   D. 26.7 eV

you have a nucleus with 19 protons, placed at x = 3.6 Angstroms. What what TWO values of x (along the x-axis) will the total electrostatic potential V be equal to zero?

(1) A small droplet with a mass of 0.2 g is placed in between the plates. In order to make the droplet float at its original position, how much charge do we need to put on the droplet? Is the charge positive or negative? (2) You are given three types of dielectric materials to fill up the space between the plates (highlighted in light blue). Each material has to take up at least 20% of the total volume of the space. The table below provides the dielectric constant of the materials. Suppose the materials can form any shape. (i) Find a way to fill up the space such that the capacitance of the capacitor is smaller than 24 × 10-10 F. (ii) Find a way to fill up the space such that the capacitance of the capacitor is larger than 52 x 10-10 F. (3) For 2(ii), suppose that the materials are filled sequentially in the order of A–B C and that before filling the space is filled with air. (The dielectric constant of air is 1.) Calculate the electric potential energy stored by the capacitor at each…

A research Van de Graaff generator has a 2.00-mdiameter metal sphere with a charge of 5.00 mC on it. (a) What is the potential near its surface? (b) At what distance from its center is the potential 1.00 MV?                          (c) An oxygen atom with three missing electrons is released near the Van deGraaff generator. What is its energy in MeV at this distance?

For problem 49 of the text, calculate the initial speed of the third electron in m/s using a separation of the other two electrons of 0.66 m. Answer in 5 sig figs!!!