Consider the following data obtained from hydroxyapatite extracted from a cow. More specifically: i) the data in the table indicate the corrected broadening of four main diffraction peaks obtained from a diffraction pattern generated with copper radiation ( =0.154 nm); ii) the plot in the graph represents the Williamson-Hall (WH) plot obtained considering 11 peaks in the range 2=2550. Determine the average crystallite size obtained from the Scherrer method (a) and from the W-H plot (b), and determine the value and the nature (compressive or tensile) of the strain (c). For the Scherrer constant use K=0.89