If you doubled the amount of charge on each electrode for the point-point configuration, what changes would take place in the electric field lines? what changes would take place in the equipotential lines?

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

Aperson gives a shopping cart an initial push along a horizontal floor to get it moving, and then lets go. the cart travels forward along the floor, gradually slowing as it moves. consider the horizontal force(s) on the cart while it is moving forward and slowing. which of the following statements is correct? (a) both a forward and a backward force are acting on the cart, but the forward force is larger. (b) only a forward force is acting which diminishes with time. (c) both a forward and a backward force are acting on the cart, but the backward force is larger. (d) only a backward force is acting, no forward force.

What happens to an isotope during radioactive decay?