Transport 7890

The sheet metal keg for oil transport has the shape of a cylinder with a volume of 62.8 liters and a height of 0.5 m. How many kg of paint do we need to paint if we need 1 kg of paint for 1.5 m2?

Correct answer:

m =  0.5862 kg

Step-by-step explanation:

V=62.8 l m3=62.8:1000  m3=0.0628 m3 h=0.5 m S1=V/h=0.0628/0.5=1250157=0.1256 m2 f=1/1.5=320.6667 kg/m2  S1= π r2 r=S1/π=0.1256/3.14160.1999 m  S=2 S1+2π r h=2 0.1256+2 3.1416 0.1999 0.50.8794 m2  m=S f=0.8794 0.6667=0.5862 kg

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