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Raafat A. Ali's user avatar
Raafat A. Ali's user avatar
Raafat A. Ali's user avatar
Raafat A. Ali
  • Member for 8 years, 8 months
  • Last seen more than 8 years ago
  • Al-Qanater Al-Khairiya, Egypt
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Hello There, YES! you I'm Raafat A. Ali from Egypt a newbie to programming & Linux a little bit friendly I live in the town of Al-qanatir Al-Khairia in Province of Al-Qalyoubia in Egypt it's the place where Nile splits but its very hot here

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Calculating moment of inertia if a solid ball, using infinitesimally thick spheres
Dec 30, 2015
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Why is there potential Energy due to lifting an object or moving when it's attached to a spring while the net work is zero?
Dec 28, 2015