The copper part has a mass of 42 g, with a volume of 7 cm in a cube, does this part have internal voids?
| December 2, 2020 | education
Given: ρ = 8.9 g / cm ^ 3 m = 42 g V = 7 cm ^ 3
Solution: Let us find the mass of the part with this volume, which does not have internal voids m = ρ * V m = 8.9 * 7 = 62.3 g 42 <62.3 Since the mass of the part from the condition is less than the mass of the part in the solution, then it has internal voids.
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