Question

a water tank measures 2m × 4m × 5m. what mass of water will it contain

Answer 1

water density - ρ=1000 kg⁄m^3

the volume of the tank - V=2 m×4 m×5 m=100 m^3

Then mass of the tank - M=ρ∙V=1000 kg⁄m^3 ∙100 m^3=10000 kg=10 tons