Positive velocity can be in any direction as long as the object is moving in that direction. For example, a car moving northward has a positive velocity in the north direction.
North/south and negative/positive have nothing to do with each other.
The electric field points away from a positive charge in all directions, meaning it would also point away to the south of the charge.
The electric field around a positive charge points radially outward in all directions away from the charge. The field lines point away from the positive charge and decrease in strength with distance according to the inverse square law.
The field lines for a positive charge are radial lines extending outward in all directions from the charge. The field lines indicate the direction of the electric field, pointing away from the positive charge. The field lines are more concentrated closer to the charge and spread out further away.
Positive if the acceleration is also upwards directed, and if you are considering a one dimensional space where you thus only have upwards and downwards as directions. Otherwise you need to more information before you able to answer this question.
Velocity's' symbol is represented by a simple: "V".
There are a few: v=d/t v=v0+at are the most basic
The velocity position time graph is rightward. This can change at anytime.
Follow the directions on the test box. If the directions say the reading is positive, yes you can be sure the test is correct.
Yes, acceleration is the slope of a velocity versus time graph.
Because it has been decided that the right and upwards directions in a plane are the positive directions and the left and downwards are negative. Originally, the decisions were arbitrary but conventionally agreed (in the same sort of way that North is usually shown at the top of a map). Any displacement in a positive direction is called a positive displacement.
They are unit vectors in the positive directions of the x and y axes.
Positive and negative
The directions of motion can be indicated by vector rays; indicating geographic directions such as north, south, east, west; positive or negative signs indicating upward and downward, north and south, east and west; and angles.
Not simultaneously. Though it can alternate. If you mean in one circuit there can be alternative directions in which the current can move. Electrical currents go from the negative to the positive since electron (electricity is a lot of electrons) is negative so is directed to the positive.
By just following their directions and doing something positive and something that makes you happy.
North/south and negative/positive have nothing to do with each other.