A bare helium nucleus has two positive charges and a mass of 6.64.10 kg. -27 (a) Calculate its kinetic energy in joules at 2.5% of the speed of light. KE = J (b) What is this in electron volts? KE = eV (c) Assume that the nucleus starts from rest and accelerates through a potential difference V, what quantity is conserved? O A. Mechanical Energy O B. Kinetic Energy O C. Potential Energy O D. None of those quanitites are conserved

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Dielectric Constant Of Water

Water constitutes about 70% of earth.  Some important distinguishing properties of water are high molar concentration, small dissociation constant and high dielectric constant.

Electrostatic Potential and Capacitance

An electrostatic force is a force caused by stationary electric charges /fields. The electrostatic force is caused by the transfer of electrons in conducting materials. Coulomb’s law determines the amount of force between two stationary, charged particles. The electric force is the force which acts between two stationary charges. It is also called Coulomb force.