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The imparfait and the passé simple are two past tenses in French but both are used differently.The imparfait is used to: describe a past action in which the time is not determined such as: "il...

You use the subjunctive in Italian when you are uncertain about what you are asking or saying, as the subjunctive means (may/might) when used by itself. You also use it when you hope or wish something, as...

Normal profit is the minimum level of profit required to maintain a firm's factors of production in their present use. It is measured by the opportunity cost of using them.
Supernormal profit is any ...

IR looks at how infrared light interacts with a molecule, measuring the vibration of atoms. Bonds are continuously vibrating and moving around, much like two balls connected by a spring. This spring syste...

Integration can be viewed in many ways. The most common way to interpret an integral is to take the area under the curve you would like to integrate. For example Draw y=x, limit between 0 and 1, shade...