Announcements. Homework for tomorrow… (Ch. 25, CQ 13, Probs. 12, 35 ) Office hours… MW 12:30-1:30 pm TR 9-10 am F 10-11 am Tutorial Learning Center (TLC) hours: ??. Chapter 25. Electric Forces & Charges ( Coulomb’s Law ). Newton’s Law of Gravitation, revisited.
(Ch. 25, CQ 13, Probs. 12, 35)
MW 12:30-1:30 pm
TR 9-10 am
F 10-11 am
Electric Forces & Charges
charges must be small compared to their separation (“point-like”)
Two uniformly charged spheres are firmly fastened to and electrically insulated from frictionless pucks on an air table. The charge on sphere 2 is three times the charge of sphere 1.
Which force diagram correctly shows the magnitude and direction of the electrostatic forces:
Two protons (p1 and p2) and an electron (e) lie on a straight line as shown. The direction of the net force on p1 ,p2 , and e, respectively, are:
What is the net electric force on chargeAin Figure EX25.16?
What is the force F on the 5.0 nC charge in Figure P25.37? Give your answer as a magnitude and an angle measured cw or ccw (specify which) from the + x-axis.