Mathematical and Physical Journal
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Problem P. 4844. (May 2016)

P. 4844. From a boat stones of total volume \(\displaystyle 0.5~\mathrm{m}^3\), and of density \(\displaystyle 2400~\mathrm{kg/m}{}^3\) is dropped into the water of a lake. Due to this the water level of the lake decreases by 1.7 mm (after the waves are ceased).

What is the surface area of the lake?

(3 pont)

Deadline expired on June 10, 2016.


Statistics:

44 students sent a solution.
3 points:Ardai István Tamás, Bánki Bence, Blum Balázs, Conrád Márk, Cseh Noémi, Csire Roland, Fehér 169 Szilveszter, Fehér Aliz, Fekete Balázs Attila, Hajnal Dániel Konrád, Hanusz Fruzsina, Horváth Péter, Keltai Dóra, Kluèka Vivien, Kuchár Zsolt, Makovsky Mihály, Merkl Gergely, Nagy 284 Domonkos, Nagy 555 Botond, Németh Csaba Tibor, Nyerges Dóra, Paulovics Péter, Pázmán Előd, Pszota Máté, Simon Dániel Gábor, Sugár Soma, Szigeti Zsófia, Tanner Martin, Tibay Álmos, Tófalusi Ádám, Tóth 111 Máté , Tóth 420 Péter, Tóth Bence Tamás, Vida Tamás, Wesniczky Albert.
2 points:Csuha Boglárka, Kovács 526 Tamás, Molnár Mátyás, Pintér 345 Balázs.
1 point:4 students.
0 point:1 student.

Problems in Physics of KöMaL, May 2016