Mathematical and Physical Journal
for High Schools
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I want the old design back!!! :-)

Problem M. 290. (October 2008)

M. 290. Measure the magnitude of the torque needed to screw down the top of a plastic water or soft drink bottle. How does this depend on the maximum torque applied during the unscrewing process of the top?

(6 pont)

Deadline expired on November 11, 2008.


26 students sent a solution.
6 points:Dobos Dániel, Gulyás Máté, Karsa Anita, Maknics András, Márta Zsolt.
5 points:Balogh Máté, Farsang István, Greksza Máté Attila, Iván Dávid, Janosov Milán, Kovács Benjámin, Szabó 895 Dávid, Szigeti Bertalan György.
4 points:7 students.
3 points:2 students.
2 points:1 student.
0 point:3 students.

Problems in Physics of KöMaL, October 2008