Density 34471

Find the weight of a wooden cube with an edge of 3.5 dm if the density of the wood is 0.7 g/cm3.

Correct answer:

m =  30.0125 kg

Step-by-step explanation:

a=3.5 dm cm=3.5 10  cm=35 cm ρ=0.7 g/cm3  V=a3=353=42875 cm3  m1=ρ V=0.7 42875=260025=30012.5 g  m=m1 kg=m1:1000  kg=30012.5:1000  kg=30.013 kg=30.0125 kg

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