IP A uniform electric field of magnitude 6.00 times 10^3 ;{rm{N/C}} points upward. An empty, closed shoe box has a top and bottom that are 37.0 cm by 28.0 cm, vertical ends that are 28.0 cm by 21.0 cm, and vertical sides that are 21.0 cm by 37.0 cm.
Calculate the electric flux through the top side of the box.