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Simple harmonic motion describes the motion of an object which has an acceleration that is directly proportional to its displacement from the equilibrium point and when the accelerations acts in the opposite...

A simultaneous equation is an equation with 2 unknowns( X and Y). You will have 2 seperate equations. By adding or subtracting the 2 equations, eliminate one of the unknowns(X0). You are now left with one un...

A reduction in the interest rate will increase the incentive for consumers to spend money. This increases consumption which increases aggregate demand. An increase in the interest rate will increase the ince...

Initially the curve is perfectly elastic. This means without raising the price level, output can increase. Output then becomes increasisngly less responsive to changes in the price level until the curve is p...

The Average Rate of Return or ARR is one of three types of investment appraisal that are often asked in the form of a 10 mark question. A question that involves these calculations are often very badly answer...