two systems contain vastly different amounts of internal energy. For the sake of definiteness, assume that system A contains 1000000 J of internal energy and system B contains 100 J of internal energy. In which direction will heat flow if these two systems are placed in thermal contact?

Organelles are 1. responsible for producing power for the cell 2. tiny structures in the cell that carry out the cell's activities 3. responsible for digestion in the cell 4. found outside of the membrane

Which are advantages of renewable resources? check all that apply. renewable energy supplies are completely reliable everywhere. some renewable resources will never be used up. little or no waste is produced by renewable resource plants. electricity can be generated in large quantities. many renewable energy facilities have lower operating costs.

Most short-period comets do not have randomly oriented orbits because