Problem M. 294. (February 2009)
M. 294. Measure the ratio at which the different washing-up liquids decrease the surface tension of water.
Does this ratio depend on the concentration of the liquid?
Deadline expired on March 11, 2009.
12 students sent a solution. 6 points: Balogh Máté, Farkas Márton, Gulyás Máté, Karsa Anita, Maknics András, Szabó 895 Dávid. 5 points: Farsang István. 4 points: 4 students. 3 points: 1 student.