Final answer:
A synchronized shock is timed to avoid periods of cardiac cycle instability during defibrillation. In physical systems, this concept relates to achieving critical damping and stability. Non-conservative forces remove thermal energy, in accordance with the second law of thermodynamics.
Step-by-step explanation:
A synchronized shock in medical terms, especially in the context of defibrillation, is timed to avoid the relative refractory period of the cardiac cycle to prevent induction of ventricular fibrillation. In physical systems, synchronizing events can sometimes relate to avoiding instability states that could lead to unpredicted or hazardous conditions. In the context of damping in harmonic motion, critical damping is often desired to return the system to equilibrium rapidly without overshooting or oscillating about the new position.
When discussing damping and the removal of energy from a system, the non-conservative damping force removes energy in the form of thermal energy. Additionally, regarding thermal hazards in a physical context, the second law of thermodynamics states that energy in the form of heat can never spontaneously transfer from a cooler to a hotter object.