(2) A load cell is calibrated in an environment at a temperature of 21C and has the following When used in an environment at 35C, its characteristic changes to the following: (a) Determine the sensitivity at 21C and 35C in m/kg. (b) Calculate the total zero drift and sensitivity drift at 35C in m and m/kg. [4.5] (c) Hence determine the zero drift and sensitivity drift coefficients (in units of m/C and (m per kg)/(C) respectively). [4.5] (d) Develop the mathematical model that relate the input and the output variables of this instrument system for each temperature environment with the original instrument unit. S=y10y1 [8]