The available source of charge that pushes a charge through a circuit is
a. alternating current.
b. direct current.
c. voltage.
d. resistance. the available source of charge that pushes a charge through a circuit is:
c. voltage.

the independent variable, the one that is intentionally manipulated, is whether or not the car hits the barrier.

the dependent variable, the one that you measure the response in, is the distance that the washers travel.

increasing transnational kinetic energy. because the transnational kinetic energy formula consists of only two variables, mass and velocity, increasing one of those properties is the only way to increase an object's transnational kinetic energy. increases to mass and velocity, however, do not have the same impact.