numerical methods question

use secant method please

Q3. For a packed bed, the Ergun equation provides a relationship between the pressure drop per unit length and the properties of the bed, . L = 150 nuo (1 - ) 7 (pv 1 + D 3 4 Dp 3 where n is the fluid viscosity, V, is the superficial velocity, D, is the particle diameter, p is the fluid density, and e is the void fraction of the bed. Consider a 1.5 m long packed bed containing 5 cm diameter particles. Fluid of density 2 g/cm3 and viscosity 1 CP flows through this bed at a superficial velocity of 0.1 m/s. The pressure drop in the bed is 416 Pa. Write a MATLAB program to find the void fraction using the Secant Method