The prandtl number, pr, is a dimensionless group important in heat transfer. it is defined as pr - cp*mu/k where cp is the heat capacity of a fluid, mu is the fluid viscosity, and k is the fluid thermal conductivity. for a given fluid, cp 0.66 j/(g * deg c), k 0.36 w/(m * deg c), and mu 1896 lbm (ft * h}. determine the value of the prandtl number for this fluid