Question: Copper is used as the conductive material in most electrical wires Copper wire is useful in this application because A. each copper atom has fewer than 30 protons in its nucleus B. solid copper's density is much greater than that of most non- conductive materials C. many of copper's electrons are free to move between different atoms D. the forces between copper atoms are relatively weak due to its high density

Alinear relationship would look like a straight line on the graph. it could have a positive negative or 0 slope. so it could be a line potentially going in any direction but it must be perfectly straight.

An atom's smaller negative particles are at a distance from the central positive particles, so the negative particles are easier to move. 

Answer: 1.4 seconds which is the third optionexplanation: current is defined as the flow of charge per timetherefore, the equation that relates current, charge and time can be expressed as follows: i = δq / δtwhere: i is the current given = 1.8 ampereδq is the charge given = 2.5 coulombδt is the time required for the flow of the given charges to give the 1.8 ampere.substitute with the givens in the above equation to get the time as follows: 1.8 = 2.5 / δtδt = 2.5 / 1.8 = 1.38888 which is approximately 1.4 secondshope this was !