What is true of the velocity versus time graph of an object receiving an applied net force?
a. it will be a flat horizontal line. c. it will be a vertical line.
b. it will be a line with a positive slope only. d. it will be a line with either a positive or a negative slope.

Point charges q1=+2.00μc and q2=−2.00μc are placed at adjacent corners of a square for which the length of each side is 1.50 cm . point a is at the center of the square, and point b is at the empty corner closest to q2. take the electric potential to be zero at a distance far from both charges. part a what is the electric potential at point a due to q1 and q2? express your answer with the appropriate units.