The is broken up into tectonic plates, which make up the hard and rigid surface of the earth. a. solid core b. convective mantle c. liquid core d. lithosphere

Explain what it means to view something from a frame of reference. provide an example that illustrates your explanation. (4 points)

The energy produced as a result of this flow of electrons from atom to atom is called

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.