The rain water from a roof of `33 m xx 30 m` drains into a cylinderical vessel having diameter of base 4 m. and height 4.2 m. If the vessel is just full, find the rainfall in cm.

The rain water from a roof of 22 m xx 20 m drains into a cylinderical vessel having diameter of base 2 m. and height 3.5 m. If the vessel is just full, find the rainfall in cm.

Find (i) The total surface area of a closed cylindrical petrol storage tank whose diameter 4.2 m. and height 4.5 m.

Find the total surface area of a closed cylindrical petrol storage tank whose diameter 4.2 m and height 4.5 m.

A circus tent is cylindrical upto a height of 3 m and conical above it. If the diameter of the base is 105 m and the slant height of the conical part is 53 m, find the total canvas used in making the tent.

tent is in the form of a cylinder surmounted by a cone having its diameter of the base equal to 24 m. The height of cylinder is 11 m and the vertex of the cone is 5m above the cylinder. Find the cost of making the tent, if the rate of canvas is Rs. 10 per m^(2)

Water having surface tension of 0.075J/ m^2 is poured in to a cylindrical vessel of radius 5cm. Find the surface energy possessed by it in 10^(-4) J(nearly)

Water is falling down at the rate of 1.8 Kg per minute from a vetical tube. The radius at the bottom of the tube is 0.004 m and pressure around it is 0.76m of Hg. The diameter of the tube at a height of 0.5 m from the bottom is 0.005 m. find the pressure at that point.