The density of a fluid is given by the empirical equation p= 70.5exp(8.27 x10^-7 P), where p is density (g/cm^3) and P(N/m^2).
a) Calculate the density in lbm/ft^3 for a pressure of 9x10^3 lbf/in^2.
b) Derive a formula for p (lbm/ft^3) as a function of P (lbf/in^2).