Answer: It indicates the speed of a object. The steeper the line the greater the speed of the object.
An example of conductors of heat would be iron pans. a example of electric insulators would be copper, gold and silver. to contrast conductors and insulators, insulators let electricity pass through them while conductors restricts electricity. both conductors and insulators can work with lithium and sodium.
i think the answer is D 10.0
