Predict the energy transformations when a fast moving roller coaster finishes its ride and comes to a stop.

Ais useful when you need a simple machine to you separate two things. a. lever b. screw c. pulley d. wedge

How are series and parallel circuits simililar? both have multiple paths for electrons to travel. both require resistors in their circuits. both require a switch to complete the circuit. both have at least one path for electrons to travel.

Explain why electric current cannot exist if a current doesn't have a voltage source.