Question: Find the flux of the vector field through the surface S.
1. F→ = yj→ through the square of side 4 in the plane y = 5. The square is centered on the y-axis, has sides parallel to the axes, and is oriented in the positive y-direction.
2. F→= (y+3)i→ through a square of side 2 in the xz-plane, oriented in the negative y-direction.