A worker is getting ready to install solar panels on a roof. She will start by placing the solar panels in two stacks. The diagram above shows the solar panels before they touch each other. Use the information in the diagram to answer the question. After a while, which of the two top solar panels will be cooler, and why? a The smaller top panel will be cooler than the larger top panel, because less energy has to transfer for the molecules to reach the same temperature as the molecules of the bottom panel.
b The larger top panel will be cooler than the smaller top panel. It started with more total energy, so less energy had to transfer for both panels in the stack to reach the same total energy.
c The larger top panel will be cooler than the smaller top panel, because the energy that transferred to it was spread out over more molecules.
d Both panels will be the same temperature, because both of the bottom panels had the same amount of energy to transfer and the molecules in the top panels start with the same energy.