   For example, a person running is an example of kinetic energy  because they are in â¦ motion. Potential energy is the other form of  energy, which is the energy an object has because of its position,  tension, pressure, or chemical formulation.
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Heating, ventilation, and air conditioning (HVAC) is the technology of indoor and vehicular environmental comfort. Its goal is to provide thermal comfort and acceptable indoor air quality. HVAC system design is a subdiscipline of mechanical engineering, based on the principles of thermodynamics, fluid mechanics, and heat transfer. Refrigeration is sometimes added to the field's abbreviation as HVAC&R or HVACR, or ventilating is dropped, as in HACR. HVAC is an important part of residential struct