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ابغى الحلول ضروري اليوم بلييييز ساعدوني
two marbles of mass 2kg each are placed with thier centers 1.0m apart. what is the gravitational force of attraction between them?
Aforce of 20N acts on ababy and moves it 30m in the direction of force. calculate the work done? |
رد: ابغى الحلول ضروري اليوم بلييييز ساعدوني
by using the gravitational law : http://upload.wikimedia.org/math/7/c...0241d6023c.png http://upload.wikimedia.org/wikipedi...tation.svg.png we find: http://latex.codecogs.com/gif.latex?....2^{2}}{1^{2}} and we have : http://latex.codecogs.com/gif.latex?...space;10^{-11} by calculate we find F http://latex.codecogs.com/gif.latex?...^{-11}&space;N |
رد: ابغى الحلول ضروري اليوم بلييييز ساعدوني
second question : أرجو أن أكون صائبا ، بس يا ريت لو تكتب مشاركاتك بالعربية لأن هذا المنتدى عربي we have the law of the work of a force http://latex.codecogs.com/gif.latex?...\alpha&space;) the angle between the vector of force and the vector of the distence is 0 so : http://latex.codecogs.com/gif.latex?...pace;=&space;1 so: http://latex.codecogs.com/gif.latex?...(F)=&space;F.d by caculating we find: http://latex.codecogs.com/gif.latex?...)=&space;20.30 so: http://latex.codecogs.com/gif.latex?...00&space;joule :s_thumbup: |
| الساعة الآن 13:25 |
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