KöMaL - Középiskolai Matematikai és Fizikai Lapok
Sign In
Sign Up
 Magyar
Information
Contest
Journal
Articles

 

Problem P. 4117. (December 2008)

P. 4117. In one of the pans of a two-pan balance there is a beaker containing some water and in the other pan there is a stand onto which an aluminium cylinder of mass 108 g is hanged. The balance is in equilibrium. If the thread is extended such that the aluminium cylinder is totally immersed into the water, the equilibrium is ceased. Find the mass of the weight which is to be put into the pan at the right in order to balance the scale.

(4 pont)

Deadline expired on 12 January 2009.


Statistics:

>
177 students sent a solution.
4 points:102 students.
3 points:10 students.
2 points:2 students.
1 point:51 students.
0 point:4 students.
Unfair, not evaluated:8 solutions.

Our web pages are supported by:   Ericsson   Cognex   Emberi Erőforrás Támogatáskezelő   Emberi Erőforrások Minisztériuma   Nemzeti Tehetség Program    
MTA Energiatudományi Kutatóközpont   MTA Wigner Fizikai Kutatóközpont     Nemzeti
Kulturális Alap   ELTE   Morgan Stanley