A lead pencil consists of a cylinder of wood with a solid cylinder of graphite filled in the interior. The diameter of the pencil is 7 mm and the diameter of the graphite is 1 mm. If the length of the pencil is 14 cm, find the volume of the wood and that of the graphite.

A lead pencil consists of a cylinder of wood with a solid cylinder of graphite filled into it. The diameter of the pencil is 7mm, the diameter of the graphite is 1mm and the length of the pencil is 14cm. Find the: (i) Volume of the graphite (ii) Volume of the wood (iii) The weight of the whole pencil, if the specific gravity of the wood is 0. 7\ gm//c m^3 and that of the graphite is 2. 1\ gm//c m^3

A led pencil consists of a cylinder of wood with a solid cylinder of graphite filled into it. The diameter of pencil is 7mm, the diameter of graphite is 1 mm and the length of the pencil is 10cm. Calculate the weight of the whole pencil, if the specific gravity of the wood is 0.7 (gm)/(cm)^3 and that of graphite is 2.1 (gm)/ (cm)^3

A led pencil consists of a cylindner of wood with a solid cylinder of graphite filled into it. the diameter of pencil is 7mm, the diameter of graphite is 1 mm and the length of the pencil is 10cm. Calculate the weight of the whole pencil, if the specific gravity of the wood is 0.7 (gm)/(cm)^3 and that of graphite is 2.1 (gm)/ (cm)^3

The inner diameter of a cylindrical wooden pipe is 24 cm and its outer 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.

Find the height of the cylinder whose volume is 154m^3 and diameter of the base is 140 cm ?

Give reasons : Graphite is used in the leads of pencils.

A medicine capsule is in the shape of a cylinder with two hemispheres stuck to each of its ends. The length of the entire capsule is 14 mm and the diameter of the capsule is 5 mm. Find its surface area.

A medicine capsule is in the shape of a cylinder with two hemispheres stuck to each of its ends as shown in Fig. The length of the entire capsule is 14 mm and the diameter of the capsule is 5 mm. Find its surface area.

The diameter of the base of a right circular cylinder is 42cm and its height is 10cm. Find the volume of the cylinder.

A solid is in the form of a cylinder with hemispherical ends. Total height of the solid is 19 cm and the diameter of the cylinder is 7 cm. Find the volume and total surface area of the solid.