Mercury is poured into a U-tube with two cylindrical arms of different radii. Both arms are cylindrical tubes. The left arm of the tube has a radius of 8.4cm, and the right arm has a radius of 3.2cm. 120g of water are then poured into the right arm.Given that the density of mercury is 13.6 g/cm³, and density of water is 1g/cm³ to what height h above the mercury level in the right arm, does the mercury rise in the left arm? State your answer in centimetres to the nearest hundredth of cm. Use g = 9.8m/s²