Which list describes the properties of a liquid? a. fixed volume, definite shape b. fixed volume, takes the shape of its container c. completely fills its container, definite shape d. completely fills its container, takes the shape of its container

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=