Q2. When studying the falling of a spherical particle in liquid many parameters appear to be important. However, we are interested in studying the velocity of falling as a function of the particle diameter, the liquid viscosity, the specific weight of the liquid and the specific weight of the particle. Use the method of repeating variables to develop a nondimensional relationship between the velocity and the other given parameters. Show a step-by-step solution, as discussed in class, and take the particle diameter, the liquid viscosity, and the liquid specific weight as the repeating variables