un niño se desplaza 20m a la derecha de un punto fijo en MRU, regresando al punto de inicio, ¿Cuál es la distancia y desplazamiento que recorrió?

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