HELP PLEASE! We used the force of a rubber band to move a toy car. This is not a closed system. What are two ways that energy is wasted or lost out of the system?

Energy is usually lost by heating up the surroundings though sometimes energy is dissipated as sound. The ways in which energy is dissipated depends on the system: for a radio or set of speakers, the electrical work is transferred into useful sound and infrared radiation is dissipated . wasted as heat energy.

current and voltage can both be different in different parts of a circuit so it matters where you place the ammeter and voltmete

truck y has a greater velocity than truck x.