Which is true about the law of superposition? a
The oldest layer is on top and the youngest is below
b
Sedimentary rock layers and are layered vertically
c
The oldest layer is below and the youngest is on top
d
The oldest layer is to the right and the youngest is to the left

Four point charges each having charge q are located at the corners of a square having sides of length a. find symbolic expressions for the following. (a) the total electric potential at the center of the square due to the four charges (use any variable or symbol stated above along with the following as necessary: ke.) vtotal= (b) the work required to bring a fifth charge p from infinity to the center of the square (use any variable or symbol stated above along with the following as necessary: w=