Q3: The Prandtl number, Npr, is a dimensionless group important in heat-transfer calculations. It is defined as Cou/k, where C, is the heat capacity of a fluid, u is the fluid viscosity, and k is the thermal conductivity. For a particular fluid, Cp= 1.166 J/(g.C), k=0.286 W/(m.C), and u=3872 lbm/(At.h). Estimate the value of Npr without using a calculator (remember, it is dimensionless), showing your calculations; then determine it with a calculator. Write the answer in the right significant figures and scientific notation