Mathematical and Physical Journal
for High Schools
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Problem P. 4672. (November 2014)

P. 4672. A solid sphere of volume \(\displaystyle 1~{\rm dm}^3\) made of Aluminium is connected with a thin thread to a wooden sphere made of pine tree, which has a density of \(\displaystyle 0.5~\rm g/cm^3\). The spheres are fully immersed into water and they are at rest.

\(\displaystyle a)\) What is the volume of the wooden sphere?

\(\displaystyle b)\) What is the tension in the thin thread connecting the spheres?

(3 pont)

Deadline expired on December 10, 2014.


113 students sent a solution.
3 points:78 students.
2 points:25 students.
1 point:3 students.
0 point:7 students.

Problems in Physics of KöMaL, November 2014