Aremote-controlled car runs on a 9v battery. if a 1.5a current is running through the circuit, what resistance is the car providing?

Why there is no inductive reactance in dc circuits

If you put a helium-filled balloon in the refrigerator, what will happen?

In a system with only a single force acting upon a body, what is the relationship between the change in kinetic energy and the work done by the force? answers: work is equal to the change in kinetic energy.work depends on the square of the change in potential energy.work is equal to the negative of the change in kinetic energy.work is equal to the square of the change in kinetic energy