Answer:
≈ 7.8
Explanation:
Specific gravity of steel = Density of steel / Density of water
Density of steel = 487 pounds per cubic foot
Density of water = 62.4 pounds per cubic foot
Specific gravity of steel = 487 / 62.4
Specific gravity of steel ≈ 7.8
Therefore, the specific gravity of steel is approximately 7.8.