Declining estrogen levels can trigger severe pain in the lower lumbar region. The lower back pain due to estrogen deficiency can best be described as excruciating pain which radiates down the buttocks and legs. The incapacitating lower back pain may also hamper every day tasks.
A Position vector is a vector that describes position of a point in space. Often the position of such a point is nothing but the x,y, and z coordinates of the point with origin as the reference point. The direction of such a vector is the arrow or...
In physics, position is usually a number on an axis. You can have an x-axis that looks like this. Or a y-axis, like this. If you drew these axes on the floor of a room, and then moved to a random place in that room, you would have a position in both the x and y directions.