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When and how do I use 'etre' in the perfect tense?

The verb 'être' is used to form the perfect tense of some specific verbs. These verbs can be remembered using the acronym MRS VANDERTRAMP: M onter --> Monté R etourner --> Retourné S ortir --> Sorti...
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Define electric potential at a point in an electric field.

The electric potential at a point in an electric field is the work done per unit charge when a point positive charge is moved from infinity to the point.
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What is the difference between a for and a while loop?

A for loop iterates over set commands within the loop (need to be indented), executing this block of code in order until prompted to stop (as specified). A while loop is used when a condition needs to be che...
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Chlorine and hydrogen reach to form hydrogen chloride. What type of solution forms when this is dissolved in water?

H 2 + Cl 2 -> HCl(g)Type of solution: acidic
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What is the importance of the resultant force in a free-fall question?

The resultant force is firstly a key-word that any examiner will notice and so it will benefit your chance of getting the marks straight away. It helps us describe whether the forces are balanced or whether ...
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Answered by Laura C. • Physics tutor
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