• • To complete this assignment follow the instructions Handwritten on A4 unruled sheets and later uploaded in pdf format Any answers must not be copied from any source Plag of any kind is not acceptable once detected by us • Provide detailed explanation for positive ratings and feedback Question 1b Note that this is a continuation of Question 1a above]. An experiment is conducted of the flow in figure 1 where the flow through the nozzle is air with a jet velocity of 2 m/s. The nozzle diameter is 20 mm. It was found that a 40 mm diameter ball with a weight of 2.55 N was able to be suspended in the resulting air jet at a height of 400 mm. A second experiment was conducted using a different ball of diameter 100 mm, and a nozzle diameter of 50 mm. In this case, the ball was found to be suspended at a height of 1 m from the nozzle exit. Assuming geometric and dynamic similarity between the experiments, and noting that in both experiments the flow through the nozzle is air, determine: a) The velocity of the jet in the second experiment, and b) The weight of the ball used in the second experiment. If each ball is made of a material found in table 1 below, determine the material of each ball (you must choose materials only from table 1). Note that each ball may be a different material. The density of air is p = 1.225 kg/m3 and the dynamic viscosity of air is µ = 1.793 × 105 Ns/m2 Material Foam Density (g/cm³) 0.050 Cork 0.120 Wood (Pine) 0.496 Gasoline 0.670 Methyl Alcohol 0.792 Rubber 0.850 Paper 0.929 Water 1.000 Glass 2.600 Aluminium 2.643 Sapphire 3.990 Titanium 4.500 Iron 7.760 Copper 8.900 Silver 10.500 Lead 11.370 Mercury 13.560 Uranium 18.740 Gold 19.320 Platinum 21.300 Table 1: The densities of commonly used materials.