The inner diameter of a cylindrical wooden pipe is 24cm and its outer diameter is 28cm The length of this pipe is 35cm. Find the mass of thepipe if 1cm3 of wood has a mass of 0.6 gram.
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Answer:
3.432 kg
Step-by-step explanation:
Find the radius:
r1 = 28 ÷ 2 = 14 cm
r2 = 24 ÷ 2 = 12 cm
Find the volume of the wood:
Volume = πh(r1² - r2²)
Volume = π(35)(14² - 12²)
Volume = 5720 cm³
Find the mass of the pipe:
1 cm³ = 0.6g
5720 cm³ = 0.6 x 5720 = 3432g or 3.432 kg
Answer: The mass is 3.432kg
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