Solving first order differential equation by separation of variable

Description
Solving of first order differential equation by the method of separation of variables is explained. The standared linear form of first order differential equation is explained. Different models of differential equation are enlisted. Application of first order differential equation in physics are shown.Such as Newton's law of conduction of heat, diffusion model etc.
Prof. Arthur Mattuck, Maths, 18.03.Differential Equations, Spring 2010: 3: Solving First-order Linear ODEs: Massachusetts Institute of Technology: MIT Open Course Ware),http://ocw.mit.edu (Accessed November 2, 2011). License: Creative Commons BY-NC-SA: http://ocw.mit.edu/terms/#cc