Mathematical and Physical Journal
for High Schools
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Problem P. 4190. (October 2009)

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 pont)

Deadline expired on November 10, 2009.

Sorry, the solution is available only in Hungarian. Google translation

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


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 solutionss.

Problems in Physics of KöMaL, October 2009