1.

The inner diameter of a wooden cylindrical pipe is 24 cm and its outer diameter is 28 crof the pipe is 35 cm. Find the mass of the pipe, if I em' of wood has mass of 4 g.

Answer»

Answer:

22.88 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 = 4g

5720 cm³ = 4 x 5720 = 22880g or 22.88kg

Answer: The mass is 22.88kg

hit like if you find it useful



Discussion

No Comment Found