14) The vapour pressure p and thermodynamic temperature T of a gas are related by the equation a In p = + bln T + c where a, b, c are constants. Find dp dT 15) An object at the end of a spring is moving so that its displacement (in cm) from the equilibrium position is given by ye 0.5t (0.4 cos 6t - 0.2 sin 6t) 00 €

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