Consider the specific gravity of a material. It is defined by comparing its density to the density of water. What is the density of water in kg/m" and Ibm/ft?? density in kg/m= kg/m3 density in Ibm/ft3 Ibm/ft 3 Determine the specific gravity of the following materials. (a) gold (p = 1,208 Ibm/ft]) SG = (b) platinum (p = 1,340 Ibm/ft3) SG = (c) silver (p = 654 Ibm/ft) SG = (d) sand (p = 94.6 Ibm/ft=) SG = (e) freshly fallen snow (p = 31 Ibm/ft3) SG = (f) tar (p = 75 Ibm/ft3) SG = (g) hard rubber (p = 74.4 Ibm/ft]) SG =