53.6 in^3 = 53.6 * 2.54 * 2.54 * 2.54 = 878.35 cm^3 = 878.35 ml. If it weighs 900 g, the density is ~ 1025 kg / m^3, specific gravity is ~ 1.025. If you want ideas on what the material may be, you will have to look up densities of different plastics and compare, which is beyond the purview of this forum.
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| 04/24/2014, 10:36 PM | From cubic inches to grams |
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