Mathematical and Physical Journal
for High Schools
Issued by the MATFUND Foundation
 Already signed up? New to KöMaL?

# 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.

### Statistics:

 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