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x² + y² = 25 ...

There is only one requirement for the ball to go through the loop. Its energy must be such that the centrifugal force experienced by the ball when it is at the peak of the loop is greater than gravity pul...

Anxiety is a negative emotional state that determines the level of worry or nervousness an individual experiences. There are two forms of anxiety: trait anxiety, where anxiety is part of individual's pers...

The imperfect tense ('l'imparfait) is used to describe events which took place in the past. However, so is the perfect tense...So what makes the imperfect differe...