7a. Find the sedimentation velocity in ms1 for a particle with a radius of 1105m and dry density is 1500kgm3 in a fluid with a density (in fluid) of 1000kgm3, and viscosity of 8.9104kgm1 s1. 7b.TiO2 has a density of 4.12g/cm3, which is suspended in water at 30C. The density and viscosity of the water are 1g/cm3 and 7.5 x103P, respectively at 30C. The radius of the TiO2 was found to be 0.29 micron. Calculate the sedimentation velocity of the TiO2