Please solve these questions, i will give my thumb up!! thank you

(1) A solid and liquid has the density of 2800 and 1000 kg/m respectively and the liquid viscosity is 0.001 Pa.s, the value of the function Ph is 2.87x104 m, determine the value for Qh, and write down its SI unit. (2) Use the Heywood Tables to complete the following: (you can use spreadsheet and submit a printed table but show calculation steps for one as example) Particle diameter, um 1 10 50 100 1000 Log(Phx) log(U[/QH) Settling velocity by Heywood Tables (m/s) Stokes' settling velocity (m/s) (3) Why are the Stokes' settling velocities higher than those calculated using Heywood Tables? (4) The Stokes' law can only be applied when the particle Reynolds number is below 0.2. What is the maximum particle size at which Stokes' law is applicable for the above system is in um)