Afigure shows a vertically moving block on the end of a cord. the graph next to the figure gives the vertical velocity component vy as a function of time to. the block's mass is 5.00kg. what is the tension in the cord?

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