Answer:
Yes , insulation has no role
Yes, because you would need friction to slow down the rollercoaster to a stop.
A region around a charged particle or object within which a force would be exerted on other charged particles or objects
Answer: The copper wiring most likely caused the mini-refrigerator fire.
Explanation: A mini-refrigerator may have one or more evaporator fan motors. These motors have copper wiring. In some situation these copper wires gets overheated. It may result to the firing of the mini-refrigerator.
Therefore, the mini-refrigerator fire was most likely caused by copper wiring.
