Two point charges q1 and q2 are held in place 4.50 cm apart. Another point charge Q = -1.75 mC, of mass 5.00 g, is initially located 3.00 cm from both of these charges and released from rest. You observe that the initial acceleration of Q is 324 m>s2 upward, parallel to the line connecting the two point charges. Find q1 and q2.

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