4. Based on the text, what can you infer about thermal characteristics? A. A lower height means a higher temperature.
B. A higher height means a higher temperature.
C. A lower density means a higher temperature.
D. A higher density means a higher temperature.

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.