KöMaL - Mathematical and Physical Journal for Secondary Schools
Hungarian version Information Contest Journal Articles News
Conditions
Entry form to the contest
Problems and solutions
Results of the competition
Problems of the previous years

 

 

Order KöMaL!

Competitions Portal

P. 4190. A cube shaped room of sides 4 m is heated by a stove of power 6 kW. The outside temperature is -10 oC. To what temperature will the room be heated if the coefficient of heat transfer is 2.1 \frac{\rm W}{\rm m^2~{}^\circ \rm C}?

(4 points)

Deadline expired on 10 November 2009.


Google Translation (Sorry, the solution is published in Hungarian only.)

Megoldás. Kb. \(\displaystyle +20\,^\circ\)C-ra melegszik fel a helyiség.


Statistics on problem P. 4190.
165 students sent a solution.
4 points:151 students.
3 points:8 students.
2 points:1 student.
1 point:1 student.
Unfair, not evaluated:4 solutions.


  • Problems in Physics of KöMaL, October 2009

  • Our web pages are supported by:   Ericsson   Google   Cognex   Emberi ErőforrĂĄs TĂĄmogatĂĄskezelő   Emberi ErőforrĂĄsok MinisztĂŠriuma  
    OktatĂĄskutatĂł ĂŠs Fejlesztő IntĂŠzet   Nemzeti TehetsĂŠg Program     Nemzeti
KulturĂĄlis Alap   ELTE   Morgan Stanley