A. Calculate the density of air in lbm/ft^3 at standard conditions (75F and 14.7 psia); Assume M = 28.9 lbm/lb-mol.
B. Calculate the density in kg/m^3.
C. Calculate the specific weight in lbf/ft^3 of air at standard conditions.
D. Calculate the specific weight in N/m^3.
E. Using the atmospheric conditions that exist 32,000 ft., calculate the density in english and and in SI units.