A jumper cable is used to start a car that has a dead battery. The cable barely reaches the car and is outstretched in a straight line. The electric starter motor on the car draws 134 AA . What is the magnetic field at a distance of 0.5 mm from the cable

To do work, this truck uses energy stored in chemical fuel and an electrical battery. how much total energy does this truck put out?

What is special about a dc circuit ?

Materials will have different energies associated with the electrons inside them. this is related to how strongly bound they are by their work function. if we sandwich a material with a very low energy between two materials with a high energy, we create a trap for an electron. if this trap is very narrow in one direction in comparison to the others, this is approximately a 1-dimensional box that confines the electron. what is the lowest energy of an electron in the box if the thinnest direction across the materials is 4.81 nm?