Question

A rectangular block of metal of density 8000kg/m^3 measures 2cm by 3cm by 10 cm. what is the mass of the block?

Answer 1

First, let's convert all dimensions to meters and then calculate the volume of the block, by multiplying all three dimensions of the block:

Now, to calculate the mass, we multiply the density and the volume:

`\begin{gathered} m=d\cdot V\\ \\ m=8000\cdot0.00006\\ \\ m=0.48\text{ kg} \end{gathered}`

Therefore the mass of the block is 0.48 kg.