Is an object on the surface of Earth sitting still relative to outer space?

Explain the comparisons between nature and packingtown that appears on pages 81 and 82 answer

If two parallel light rays hit a mirror, they will not be parallel to each other after they reflect.

Anonzero net force acts on a particle and does work. which one of the following statements is true? the kinetic energy of the particle changes, but the speed of the particle does not change. the kinetic energy of the particle does not change, but the speed of the particle does change. the kinetic energy of the particle changes, but the velocity of the particle does not change. the kinetic energy and the speed of the particle change, but the velocity of the particle does not change. the kinetic energy, speed, and velocity of the particle change.