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This is a standard question that may be found in a C4 mathematics paper. Students should use knowledge of the volume of revolution formula V = piint_{a}^{b} y^{2}dx to find the expression V =...

The question refers to the sculptures bridging the gap between the archaic and classical periods. The key to this question is to bring in examples of both male and female free-standing sculpture fitting t...

BeCl2 contains 2 bonding pairs of electrons which arrange themselves as far away as possible to minimise the electron repulsion between them, giving a bond angle of 180 degrees and a linear shape. H2O als...

g(x) is a decreasing function when the gradient of the function g'(x) is less than 0. This means that the differential of g(x) evaluated at x must be negative.First we need to find g’(x). To do this we ne...

Temperature is defined as the average kinetic energy of a substance, and it is what determines whether an object is a solid or a liquid. When the temperature is low, the average kinetic energy of the subs...