Final answer:
The density of the lead block is 11 g/cm³.
Step-by-step explanation:
The density of an object can be calculated by dividing its mass by its volume. In this case, the mass of the lead block is given as 440 g. To find the volume, we multiply the width, length, and height: 2 cm x 10 cm x 2 cm = 40 cm³. Dividing the mass by the volume gives us the density: 440 g / 40 cm³ = 11 g/cm³. Therefore, the density of the lead block is 11 g/cm³.