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.
The term that best describes the set of all points in a plane for which the sum of the distances to two fixed points equals a certain constant is called an "ellipse." In this scenario, the two fixed points are referred to as the foci of the ellipse, and the constant must be greater than the distance between the two foci for the shape to exist.
16
a line with arrows on each end. it must have points in between the two arrows
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.
They must be collinear.
Energy
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
They believed an agreement must exist between the people and their leaders
To measure an angle you must take all the points in between the two. Therefor it could be anywhere from 2 to 100 points.
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.
They must have mass. This is not a particularly stringent or discriminatory requirement.