بلوتونيوم
01-20-2009, 01:44 PM
After a heavy meal a man found that he overate by 2000 kJ. To get rid of the extra calories he decided to do some work ( climb a mountain ). What vertical height must he climb. His mass is 60 kg. The efficiency of the human body is 20%
امممم :eh_s (10) كيف ينحل؟
امممم :eh_s (10) كيف ينحل؟