Anja is driving west in a straight line. After driving for 5.50 km, she turns south, and drives for 9.20 km. At the end of her drive, what is the magnitude of her displacement?
O 11.9 km
O 10.7 km
0 3.83 km
14.7 km

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.