The speed of a nerve impulse in the human body is about 100 m/s. If you accidentally stub you toe in the dark, estimate the time
it takes the nerve impulse to travel to your brain. (Assume that you are approximately 1.6 m tall and that the nerve impulse travels at uniform speed.)
Thermal energy of an isolated system changes with time If the mechanical energy of that system is constant according to the first law of thermodynamics, which states that thermal energy of an isolated system can still change as long as the total energy of that system does not change.
