Diameter 41221

How many shots with a diameter of 2 mm can a gunsmith cast from 1 kg of lead? The density of lead is 11.4 g / cm3

Correct answer:

n =  20941

Step-by-step explanation:

D=2 mm cm=2:10  cm=0.2 cm m=1 kg g=1 1000  g=1000 g ρ=11.4 g/cm3  r=D/2=51/2=5 21=101=0.1 cm V1=34 π r3=34 3.1416 0.130.0042 cm3 V=m/ρ=1000/ρ=575000=87574187.7193 cm3  n=V/V1=87.7193/0.0042=20941



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