Cancel out any of the energy terms that are zero to simplify your equation. For example, if the system has no motion at the final or initial positions, then remove the kinetic energy terms from the equation.
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In systems involving energy management, the phrase “the system does not store energy initially” signifies several implications, including 1. immediate energy availability, 2. system
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It is based on the principle that energy cannot be created or destroyed in an isolated system, and that any gain in energy within the system must be accompanied by an equivalent loss in
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The concept of the Zero Energy State attempts to ensure that the equipment or structure contains no source of energy that could expose an individual to harm during maintenance or disassembly. This
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If mass, work and heat do not cross the boundary (that is, the only energy exchanges taking place are within the system), then the system is referred to as an isolated system.
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Study with Quizlet and memorize flashcards containing terms like Which type of PV system typically has no energy storage?, The total installed capacity of PV in the world between 1999 and now has
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Heat transfer and work are both energy in transit—neither is stored as such in a system. However, both can change the internal energy U of a system. Internal energy is a form of energy completely
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The law of conservation of energy states that the total amount of energy of a system before and after an interaction between objects in conserved. This only applies to isolated systems
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Of course, recognizing whether a system is “closed” or not depends on having first a complete catalogue of all the ways in which energy can be stored and exchanged—to make sure that there is, in fact, no
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Once the temperature increase has occurred, it is impossible to tell whether it was caused by heat transfer or by doing work. This uncertainty is an important point. Heat transfer and work are both
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