How far will a ball starting from rest fall freely in 12.0 seconds? 706 m
44.0 m
47.0 m
176 m

The movement of electrons between atoms is called an

A47.2 g block of copper whose temperature is 480 k is placed in an insulating box with a 91.8 g block of lead whose temperature is 200 k. (a) what is the equilibrium temperature of the two-block system? (b) what is the change in the internal energy of the two-block system between the initial state and the equilibrium state? (c) what is the change in the entropy of the two-block system? the heat capacities of copper and lead are 386 j/kg·k and 128 j/kg·k, respectively.

The junction rule describes the conservation of which quantity? note that this rule applies only to circuits that are in a steady state.