Question

7.9kg of steel scrap was melted and recast into a cuboid of block 20cm long,10cm wide and 5cm high.Find the density of steel .​

Answer 1

Answer:

mass of steel =7.9 kg= 7.9×1000 g=7900 g

volume of steel= 20×10× 5 cm³=1000 cm³

now

$d = \frac{m}{v}$

=

$\frac{7900}{1000}$

=7.9 gcm-³