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
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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
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