does it sink or float ?

Question

I drop a cork into a tube of water and, of course, it floats. Now I put the tube in a centrifuge and spin it - fast. What happens to the cork ?

Answer 1

For the cork to sink it must raise the water level. Since it must raise the water against the force of the centrifuge - pushing harder on both just doesn't do the job (of sinking the cork).

Answer 2

it will be on the inner surface ( near the point of spin )

centrifuges are used to separate things by density ( like blood ) the denser the item the closer to the rim ( outer edge ) it will be ( the cork is less dense than the water so it will stay at the 'surface'

all a centifuge does is simulate higher gravity so things will remain the same as in a normal 1g feild