(iii) Why oil floats in water? (b)The density of two liquids (A and B) is given as 1000kg/m' and 600kg/m' respectively. The two liquids are mixed in certain proportion and the density of the resulting liquid is 850kg/m'. How much of liquid B (in grams) does a lkg of the mixture contain? Assume that the volume of the two liquids is addictive when mixed. 5. (a) (i) State the applications of hydraulic press. (ii) Dams are constructed thicker at the bottom than the top. Give reasons. (b) (i) Describe two experiments to show that exert pressure. (ii) Explain why tracks which carry heavy loads have many wheels. (iii) If the mercury barometer is 75.58 cm at the base of the mountain and 66.37cm a the summits. What is the height of the mountain? 6. (a) (i) What is regulation?​