To get the speed, you just divide c by n = 1.46. Using the formula you gave correctly yourself. If you multiply c with a number bigger then 1, you'd get a speed greater then that in vacuum.
I can't see why you're given the n value for the crown glass material, since the speed in the liquid...
I'd like to study Physics after Gymnasium (equivalent High School).
How impotent is Chemistry in the different fields of physics? I still haven't decided which direction at all to do in physics, and I'm thinking what would be blocked by not doing Chemistry?
I have Chemistry right not, but...
Hi:smile:
I'm not certain, but how about taking moments on each end, using that the force acting upwerds on each end will be the product of the Spring Constant and the displacement of each end.
Then subtract the difference in the displacements, and you'll be left with a triangle with 2 known...