Child care providers can encourage multilingual children to sharpen their English language skills by doing which of the following? A) by building paper airplanes
B)By promoting group discussions
C) by taking music classes
D) by going on field trips

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.