A rightward force is applied to a 17kg object to move it across a rough surface with a rightward acceleration of
3m/s/s. THe coefficient of friction between the object
and the surface is 0.5.
Use the diagram to solve for Fgrav, Fnorm, Fapp, Ffrict
and Fnet

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