1. The problem statement, all variables and given/known data Two protein having same density 1.35 g /cm^3 but with different diameter 4nm and 5nm. They are mixed at the top of a centrifuge tube that is of length 1cm. What is the centripetal acceleration needed to separate them before they move to the end of the tube? 2. Relevant equations Do we use V^2 = (Vo)2 + 2as where s = 0.01m and Vo = 0 ? where a = centripetal acceleration and V = terminal velocity?? 3. The attempt at a solution Terminal velocity = (mω2)/kr * (1 - ρfluid/ρ) But this question there is a lot of unknown variables so how to we approach it ? Thank you!