Asmall plane is initially flying due west with an airspeed (speed relative to the air) of 50 m/s. the plane flies into a-region where the wind is blowing toward the southwest at 20 m/s. if the pilot does not change the heading of the plane, the speed of the plane relative to the ground a. is greater than

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=