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The right ventricle only pumps blood to the lungs, which are very near the heart. The left ventricle needs to pump blood to the eintire body, so the greater distance requires higher pressure to make sure ...

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...