Answer:
555.936 kg
Explanation:
h = Length of pipe = 4 m
r = Inside radius =130 mm
R = Outside radius = 150mm
Volume of the cylinder
v = πR²h - πr²h
⇒v = πh(R²-r²)
⇒v = π4(0.15²-0.13²)
⇒v = 0.0704 m³
Density of steel varies between 7,750 and 8,050 kg/m³
So, let us take the average of the two values so we get density of steel as 7900 kg/m³ as the exact density is not given
Density
[tex]\rho=\frac{m}{v}\\\Rightarrow m=\rho \times v\\\Rightarrow m=7900\times 0.704\\\Rightarrow m= 555.936\ kg[/tex]
So, approximate mass of the steel pipe is 555.936 kg
