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You always start by defining what a buffer solution is: A buffer solution is a system that minimises a change in pH on the...

By technical definition a monopoly is a firm which holds 100% of a market, however in the UK the competition authorities define a legal Monopoly as a firm holding over 25% power within a market. Monopolie...

Liberal democracy is defined as a democratic system of government in which individual rights and freedoms are officially recognized and protected, and the exercise of political power is limited by the rul...

m = 3kg ; 7kg u = 5ms^-1 ; -2ms^-1 (Taking the direction to the right as positive). momentum before = m1u1 + m2u2 = (3x5) + (7x-2) = 1 momentum after = (m1+m2)v2 = (3+7)v = 10v By the principle of conserv...

Musical 'modes' are basically a set of tonalities deriving from a normal natural major scale. With C major, for example, it seems obvious that one should begin and end on C: C-D-E-F-G-A-B-C. But what if w...