Final answer:
The density of the object is calculated at 8.6 g/cm³ by dividing the mass (86 g) by the volume (10.0 cm³). This density suggests the object is likely made of a dense metal like brass or bronze.
Step-by-step explanation:
To calculate the density of a solid object, we use the formula Density (D) = Mass (m) / Volume (V). Given that the object has a mass of 86 g and a volume of 10.0 cm³, we substitute these values into the formula to get a density of 8.6 g/cm³. This calculation is pivotal in identifying materials because different substances have characteristic densities.
Looking at a table of densities for various materials, one can compare the calculated density with known values to determine the likely material of the object. For instance, plastics generally have densities less than 1 g/cm³, whereas metals have higher densities, like aluminum at around 2.7 g/cm³ and gold at 19.3 g/cm³. If this object has a density of 8.6 g/cm³, it might be a type of metal such as brass or bronze, but further material identification would be needed to confirm.