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

Problem P. 4784. (December 2015)

P. 4784. The parabolic mirror of the Canadian Large Zenith Telescope is created by a uniformly spinning pan filled with liquid mercury. The diameter of the telescope is 6 m, and the number of revolutions of the pan is 8.5/minutes.

Determine the focal length of the parabolic mirror.

(4 pont)

Deadline expired on January 11, 2016.


Statistics:

44 students sent a solution.
4 points:Balogh Menyhért, Bekes Nándor, Berke Martin, Büki Máté, Csenger Géza, Csorba Benjámin, Csuha Boglárka, Édes Lili, Elek Péter, Fazakas Réka, Fehér 169 Szilveszter, Gémes Antal, Ghada Alshalan, Horváth Péter, Kopitkó Tünde, Körmöczi Dávid, Krasznai Anna, Marozsák Tóbiás , Németh 777 Róbert, Nenezic Patrick Uros, Páhoki Tamás, Pintér 345 Balázs, Pszota Máté, Radnai Bálint, Sallai Krisztina, Szántó Benedek, Szőke Dániel, Tibay Álmos, Tomcsányi Gergely, Tóth Adrián, Varga-Umbrich Eszter.
3 points:Asztalos Bogdán, Debreczeni Tibor, Horváth Botond István, Korecz Gábor, Sal Kristóf, Simon 727 Máté, Szick Dániel, Török Tímea, Zöllner András.
2 points:4 students.

Problems in Physics of KöMaL, December 2015