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Metaphysics is the study of the nature of reality. If you happen to ask yourself question like "Am I the same person I was yesterday?", or "does time really passes", or again "wha...

A key thing to remember when writing an English essay is that you need to back up every point you make. This doesn't have to be a hard-and-fast rule but try and think of the structure: Point-->Evidence...

E = P*t = 36 * 3600 = 1.3 * 10⁵ J

[1 -2; -5 -4] determinant = {1 * (-4)} - {-5 * (-2)} = -4 - 10 = -14

A quadratic equation is an equations of the form:   ax² + bx + c = 0 (1)  where a is not 0. The ways of finding the roots are:  quadratic formula, factorising, substituting, completing the squa...