Problem 2 (12 Points)
A tank of 2.5[gal] is filled completely with Freon. Assuming that the specific gravity of Freon is
1.315, what is the weight of Freon in units of [lbf] when the tank is on Mars? Note that the
acceleration due to gravity on Mars is 3.7[m/s$^2$]. (Numerical solution: 10.4[lbf])