1. Answer the following true or false. Explain.
(a) Work is done by a system on its surroundings if the sole effect on everything external to the system could have been the raising of a weight.
(b) Cooling of computer components achieved by a fan-induced flow of air falls in the realm of radiation heat transfer.
(c) For every thermodynamic cycle, the net amounts of energy transfer by heat and work per cycle are equal.
(d) A flywheel spinning owing to an input of electricity stores energy as internal energy.
(e) Kinetic and potential energy are each extensive properties of a system.
2. Visit a local appliance store and collect data on energy requirements for different models within various classes of appliances, including but not limited to refrigerators with and without ice makers, dishwashers, and clothes washers and driers. Prepare a memorandum ranking the different models in each class on an energy-use basis together with an accompanying discussion considering retail cost and other pertinent issues.