Water is pouring into a cuboidal reservoir at the rate of 60 litres per minute. If the volume of reservoir is 108 `m^3`. Find the number of hours it will take to fill the reservoir.

Water is pouring into a conical vessel of diameter 5.2m. And slant height 6.8 m(as shown in the adjoining ) , at the rate of 1.8 m^(3) per minute .How long will it take to fill the vessel?

Water is pouring into a conical vessel as shown in the adjoining figure at the rate of 1.8 m^(3) per minute. How long will it take to fill the vessel?

Water is being poured in to the inverted conical vessel at the rate of 1.5 cubic meter per minute. Its depth is always equal to twice its radius. The level of water is rising at the rate of 3//8pi meter oer minute when its depth is

A water tank has the shape of an inverted right circular cone with its axis vertical and vertext lowermost. Its semi-vertical angle is tan^(-1)(0.5) . Water is poured into it at a constant rate of 5 cubic metre per hour. Find the rate at which the level of the water is rising at the instant when the depth of water in the tank is 4m.

A geyser heats water flowing at the rate of 3.0 litres per minute from 27 °C to 77 °C . If the geyser operates on a gas burner, what is the rate of consumption of the fuel if its heat of combustion is 4.0 × 104 J//g ?

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.