This is a driver's ed question so i'm not really sure where to put it. any would be under most conditions a minimum following interval of will enable you to adjust sped or position appropriately. a. 2 seconds b. 3-4 seconds c. 8 seconds d. three car lengths

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.