In the diagram, 91, 92, and q3 are in a straight line. Each of these particles has a charge of
-2.35 x 10-6 C. Particles q1 and q2 are separated
by 0.100 m and particles 42 and 43 are separated
by 0.100 m. What is the net force on particle q3?
Remember: Negative forces (-F) will point Left
Positive forces (+F) will point Right

Which of the following best describes internal energy? a. the difference between the kinetic and potential energies of the particles in a system b. the sum of the kinetic and potential energies of the particles in a system c. the sum of the kinetic and thermal energies of the particles in a system d. the difference between the kinetic and thermal energies of the particles in a system