Mathematical and Physical Journal
for High Schools
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Problem P. 4497. (January 2013)

P. 4497. The length of a glass tube, which is closed at one end is \ell=100 cm. Holding it vertically with its closed end at its top, it is immersed into mercury to half of its height. What is the height of the mercury in the tube? The atmospheric pressure is H=75 Hgcm.

(3 pont)

Deadline expired on February 11, 2013.

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

Megoldásvázlat. A cső aljától mérve 25 cm magasságig emelkedik fel a higany.


108 students sent a solution.
3 points:60 students.
2 points:18 students.
1 point:9 students.
0 point:21 students.

Problems in Physics of KöMaL, January 2013