If, when machining at high cutting speeds, the heat conducted into the tool becomes negligible and the heat conducted into the workpiece is 4% of the total heat generated, derive an expression for the final chip temperature (θ) in terms of the specific cutting energy (ps), specific heat capacity of the work material (cp), and density of the work material (Ï) (i.e. only these three terms should be there on the right hand side of your derived expression).