A cube is located with one corner situated at the origin of an x, y, z coordinate system. One of the cubes faces lies in the x, y plane, another in the y, z plane, and another in the x, z plane. In other words, the cube is in the fi rst octant of the coordinate system. The edges of the cube are 0.20 m long. A uniform electric fi eld is parallel to the x, y plane and points in the direction of the 1y axis. The magnitude of the fi eld is 1500 N/C. (a) Using the outward normal for each face of the cube, fi nd the electric fl ux through each of the six faces. (b) Add the six values obtained in part (a) to show that the electric fl ux through the cubical surface is zero, as Gauss law predicts, since there is no net charge within the cube.
Physics Week 0 23.09 L Josh Samani email@example.com 28.09 (Wednesday) 18:00-19:00 @PAB 1-425 Pre-quiz, no need to study for it. iClicker or REEF> app necessary, will be used from 27.09 (Tuesday) Piazza necessary, will be used instead of the CCLE discussion forum Lecture will not repeat textbook material, so read textbook before coming to lecture. Lecture and reading schedule provided on CCLE. Midterm will be held in class. Classical Mechanics (Newton) Model that works pretty well at a macroscopic scale (naked eye ~ planets) Fails at black holes General Relativity (Einstein) Fails at atoms Quantum mechanics *Everything fails at dark matter