Question

a piece of wood of mass 9.4 gram has a volume of 2 cm cube find the density of word in CGS system and Si system​

Answer 1

Answer:

4.7 g/cm³ and 4700 kg/m³

Explanation:

Density = Mass / Volume

In CGS system

Density = 9.4 g / (2 cm³) = 4.7 g/cm³

In SI system

• 1 kg = 10³ g
• 1 m³ = 10⁶ cm³

Density = 9.4 g / (2 cm³)

= [9.4 g × 1 kg / (10³ g)] / [2 cm³ × 1 m³ / (10⁶ cm³)]

= [(9.4/2) × (10⁶/10³)] kg/m³

= 4.7 × 10³ kg/m³

= 4700 kg/m³