Announcements

• Friday's Quiz will include a short Excel component.
• The grader for WebAssign solutions is using a coding scheme for more detailed feedback - the scheme will be posted on the website later today.
• Grades are still only 85% complete and will be updated throughout the week
• People have been reporting discrepancies with the attendance grades - please contact me outside of class if your attendance grade does not reflect your attendance. Make sure you include when you registered for this class and when (explicit dates) you have been out on excused absences.
• We are instituting a new procedure for attendence to reduce errors
• Friday is the last day to withdraw from classes w/o penalty. If you withdraw from this class, remember that you have to withdraw from both the lecture and lab courses separately.
• We decided to that only the top 80% of your WebAssign written solution scores would count towards your course grade.
• I will also allow you to drop your 2 lowest quiz scores.
• Test 2 is one week from Friday
  Test 2 notes will be posted Friday night
  
  

Assignments

• Due Today
  Read HRW text Chapter 25: Sections 1-5
  WebAssign: Week 7 Journal
  Group Contracts
  Assigned Problem from class: Use Gauss' Law to find the E-field inside a uniformly charged cylinder of radius R = 0.30 m with charge density r = 2.5e-6 C/m^3 at a distance r from the center of the cylinder for a point inside the cylinder (r < R) and a point outside the cylinder (r > R). Graph the E-field as a function of r from r = 0 to infinity. Hint: use your notes from the Gauss Law and cylinder problem from Monday's class.
  
  
• Due Friday
  WebAssign: Feb 28 HW
  Charges Spheres - Parts B and C
  
  

Activities

• Assigned Problem - See Above (it has been modified slightly)
• Charged Spheres (finished part A only,
  Parts B and C assigned as homework due Friday.)
• Gauss' Law and a cylinder - part 2*op
• Potential Energy Review*
  • Part I
  • Part II Rev

*Did not get to this today