Find the weight of a lead pipe 3.5 m long. The external diameter of pipe is 2.4 cm and thickness of the pipe is 3 mm and 1 cm. of lead weights 10 g.

A piece of metal pipe is 77 cm long, the inside diameter of a cross-section is 4 cm and the outside diameter is 4.5 cm. If the metal weighs 8 g per cm^3 , what is the weight of piece of pipe ?

A cylindrical road-roller made of iron is 1 m long. Its internal diameter is 54 cm and the thikcness of the iron sheet used in making the rolleris 9cm. Find the mass of the roller, if 1 cm^3 iron has 7.8 g mass. (Use pi = 3.14)

The inner diameter of a cylindrical wooden pipe is 24 cm and its out diameter is 28 cm. The length of the pipe is 35 cm. Find the mass of the pipe, if 1 cm^3 of wood has a mass of 0.6 g.

A lead pencil consists of cylinder of wood with a solid cylinder of graphite fitted into it. The diameter of the pencil is 7 mm. the diameter of the graphite is 1 mm and the length of the pencil is 10 cm. Calculate the weight of the whole pencil in grams correct to three places of decimals if the specific gravity of the the wood is 0.6 and of the graphite 2.3.

Find the height of the cylinder whose volume is 1.54 m^3 and diameter of the base is 140 cm ?

An iron pipe 20 cm long has exterior equal to 25 cm. If 1 cm is thickness of the pipe. Find the whole surface area of the pipe.

Find the weight of a solid cone whose base is of diameter 14 cm and vertical height 51 cm, supporting the material of which it is made weighs 10 grams per cubic cm.

A metal pipe is 77 cm long. The inner diameter of a cross section is 4 cm, the outer diameter being 4.4 cm. Find outer curved surface area.