Mathematical and Physical Journal
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I want the old design back!!! :-)

Problem P. 4028. (December 2007)

P. 4028. The bore diameter (inner diameter of the cylinder) of an older-type four-cylinder, four-stroke automobil engine is 92 mm. The piston stroke length is also 92 mm. The average gauge pressure in the cylinder during power stroke is 5.6.105 Pa. The number of revolution of the main axle is 4500 rev/min. Calculate the ``theoretical'' power of the engine.

(5 pont)

Deadline expired on January 11, 2008.


Statistics:

98 students sent a solution.
5 points:Almási 270 Gábor András, Balogh Gábor, Bay Dorottya, Béres Bertold, Borbély Adrienn, Csató Bertalan, Czinder Gábor, Dani Péter, Deli Gábor, Farkas Zoltán, Ferenczy László, Filep Tibor, Fodor Jenő, Fonyó Dávid, Földes Imre, Gál Bálint, Harsányi Szabolcs, Hartstein Máté, Hlatky Dávid, Kalina Kende, Krämer Zsolt, Kuzmich Ambrus, Lénárt Tamás, Lovas Lia Izabella, Maczkó Péter, Maknics András, Marák Károly, Molnár 001 Anikó, Oleár Gréta Mária, Para Attila, Paripás Viktor, Pázmán Koppány, Prischetzky Tamás, Rácz Viktor, Sáfrán Gergely, Sós Attila Róbert, Szakács Zsolt, Szikszay László, Szolnoki Lénárd, Szűcs Levente, Szük Dániel, Tolnai Gábor, Tolner Ferenc, Tószegi Károly, Tóth 123 László, Túri Attila, Vas 193 Péter.
4 points:25 students.
3 points:15 students.
2 points:6 students.
1 point:1 student.
Unfair, not evaluated:4 solutions.

Problems in Physics of KöMaL, December 2007