Thermal physics-modes of transmission- conduction, convection and radiation(diploma1st year physics) Скачать
Concept of energy-solar energy, solar thermal conversion and photovoltaics (diploma 1st year physics Скачать
parallelogram law illustrations and moment of force(diploma 1st year and intermediate1st year) Скачать
Parallelogram and triangle law practical (lami's theorem)-Intermediate & diploma1st year physics Скачать