Mathematical and Physical Journal
for High Schools
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Problem M. 263. (October 2005)

M. 263. Fill the washbasin with some water, wait until the water has a smooth surface than (using a rope or a chain) suddenly pull out the plug and let the water drain away. Measure the time while the washbasin is emptied, as a function of the amount of water. Endeavour to investigate both cases: when there is, and there is no whirl in the water.

(6 pont)

Deadline expired on November 11, 2005.


Statistics:

27 students sent a solution.
6 points:Illés Máté, Láng Marcell, Meszéna Balázs, Tüzes Dániel.
5 points:Kocsis Vilmos, Kőrösi Márton, Mészáros 639 Ágnes, Mirk Katinka, Szabó 001 Áron.
4 points:4 students.
3 points:6 students.
2 points:7 students.
0 point:1 student.

Problems in Physics of KöMaL, October 2005