일반물리학 2 — Gauss' Law: Problem 42

42 Figure 23-43 shows a closed Gaussian surface in the shape of a cube of edge length 1.50 m. It lies in a region where the nonuniform electric field is given by \(\vec{E} = (3.00x + 4.00)\hat{i} + 6.00\hat{j} + 7.00\hat{k}\) N/C, with \(x\) in meters. What is the net charge contained by the cube?