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The C# keyword used to terminate a loop prematurely is:

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A while loop in C# always executes at least once.

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Temps estimé: 2 minutes

La relation entre les amplitudes des champs électrique et magnétique associés à une onde plane progressive se propageant dans l'air est :
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Temps estimé: 3 minutes

Pour une onde électromagnétique plane sinusoïdale progressive se propageant dans le milieu air, les expressions des vecteurs champs électrique et magnétique en notation complexe permet de déduire que: et avec le vecteur d'onde et la pulsation. 

Dans ce cas, on déduit que l'équation de Maxwell-Ampere peut s'écrire: 

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Which of the following is NOT a selection statement in C#?

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Estimated time: 2 minutes

We consider an electromagnetic progressive plane wave propagating in air/vacuum. The expression of the electric field  associated to this wave is:

 

The expression of the magnetic field  associated to this wave is:

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Which of the following statements is (are) true?

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Use the information below to answer the following questions.

Fact 9.3.2 Hamptons Glamour Finds a Humbler Home

Lucy Martin collected and sold vintage clothing in the wealthy Hamptons, but in the recession of 2008, her sales fell. She eventually moved her shop to Tannersville, N.Y., where her expenses are 70 percent less than they were in the Hamptons.

Source: The New York Times, December 22, 2016

Refer to Fact 9.3.2. According to the news clip, vintage clothing is ________ good. If the price of vintage clothing falls and income remains the same, the quantity of used clothing bought ________.
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Estimated time: 2 minutes

The relationship between the amplitudes of the electric and magnetic fields  associated to an electromagnetic plane progressive wave in air is
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