The relationship between the applied force \( F(X) \) (in Newton) on a body and its displacement \( X \) (in metre) is given below. The total amount of work done in moving the body from \( X = 0 \) to \( X = 4 \, \text{m} \) is ............ Joule. 

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The output (Y) of the given logic implementation is similar to the output of an/a …………. gate.