To measure an angle you must take all the points in between the two. Therefor it could be anywhere from 2 to 100 points.
They must have mass. This is not a particularly stringent or discriminatory requirement.
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a line with arrows on each end. it must have points in between the two arrows
In order for three or more points to be collinear, they must lie on the same line. Two points would always be collinear. Noncollinear are points that do not lie in the same line.
Potential Difference
There must be a potential difference between the two points in the conductor in order to maintain a flow of charge. This potential difference creates an electric field that drives the charges to move from one point to another.
For a current to flow between two points, those points must have a potential difference (voltage) across them.
For an electric current to flow, there must be a closed circuit allowing the movement of charged particles (typically electrons) from a high potential to a low potential. Additionally, there must be a potential difference (voltage) between two points in the circuit to drive the flow of electricity.
Energy
They must be collinear.
The distance between two points must be known to determine the average slope between the two points. You must also know the change in elevation.
Gene Flow
For electric charge to flow, there must be a potential difference (voltage) between two points in a conducting material. This difference in potential creates an electric field that exerts a force on the charges, causing them to move. Without a potential difference, charges will not flow.
To measure an angle you must take all the points in between the two. Therefor it could be anywhere from 2 to 100 points.
They believed an agreement must exist between the people and their leaders
They must have mass. This is not a particularly stringent or discriminatory requirement.