Athin conducting sphere has a charge q and radius a (a i) what is the capacitance of the sphere (relative to a reference plane at infinite distance)? (a ii) what is the energy density of the electric field at a distance r from the center of the sphere, for both ra (a i) what is the total energy of the electric field? express the result in terms of the capacitance obtained in part (a i) and the potential vo on the surface of the sphere. (b) a potential v is established between inner (radius a) and outer (radius b) shells of thin concentric conducting spheres. what is the radius of the inner sphere (i. e. the ratio a/b) such that the electric field on its surface is minimum. express this minimum value in terms of v and b.

An asteroid is discovered in a nearly circular orbit around the sun, with an orbital radius that is 2.47 times earth's. what is the asteroid's orbital period, its "year," in terms of earth years?

When temperature of a substance increases, of its particles increase resulting in more between particles. real world applications of thermal expansion absolute zero (-273 degrees c) is the lowest possible temperature on the kelvin scale. it is a measure of where a substance has no kinetic energy. heat is a process of the . energy flows spontaneously from a object to a until equilibrium is reached. heat is measured in heat is transferred throughis a method of heat transfer that occurs between particles of matter that are in direct contact with each other. are poor conductors that impede / reduce the rate of heat transfer. is a method of heat transfer that occurs in fluids (non-solids) by means of currents. real world application of convectiona method of heat transfer through electromagnetic waves. when energy moves from one object to another inside a closed system, no energy is or in the system in the transaction. systems will spontaneously move to a state of organized energy or high disorder over time called

Which of the following statements correctly describes a transformer?