Approximately 27561

One cubic decimeter of bronze weighs approximately 8.7 kg. Find the ball's weight (diameter 32 cm), and round the result to kilograms.

Correct answer:

m =  149.2684 kg

Step-by-step explanation:

ρ=8.7 kg/dm3 D=32 cm dm=32:10  dm=3.2 dm r=D/2=516/2=5 216=1016=58=1.6 dm  V=34 π r3=34 3.1416 1.6317.1573 dm3  m=ρ V=8.7 17.1573=149.2684 kg

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