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An ideal Carnot heat engine operates between and . What is its efficiency?
Economic Thinking
A way of analyzing problems by considering the costs and benefits of different choices and actions.
Opportunity Cost
The cost of forgoing the next best alternative when making a decision, representing what is lost when one choice is made over another.
War on Terrorism
A global military, political, and ideological struggle, primarily led by the United States, to prevent and combat terrorism.
Airport Security
The techniques and methods used in an effort to protect passengers, staff, and planes from malicious harm, crime, and other threats.
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