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P. 4109. Using a bubble blower a lot of bubles of different sizes can be blown. These bubbles descend slowly. Assuming that all bubbles have the same thickness wall, which bubbles descend more quickly, the ones which have greater radius or the ones which have smaller radius?

(4 points)

Deadline expired on 11 December 2008.

Statistics on problem P. 4109.
 117 students sent a solution. 4 points: 55 students. 3 points: 8 students. 2 points: 11 students. 1 point: 21 students. 0 point: 18 students. Unfair, not evaluated: 4 solutions.

• Problems in Physics of KöMaL, November 2008

•  Támogatóink: Morgan Stanley