The cross-section of a canal is a trapezium in shape. If the canal is 10m wide at the top 6m wide at the bottom and the area of cross-section is `72m^2` determine its depth.

When the length and area of cross-section both are doubled, then its resistance

The following figure shows the cross-section ABCD of a swimming pool which is a trapezium in shape. If the width DC, of the swimming pool is 6.4 m, depth (AD) at the shallow end is 80 cm and depth (BC) at the deepest end is 2.4 m, find its area of cross-section.

A area of cross section of a large tank is 0.5m^2 . It has an opening near the bottom having area of cross section 1cm^2 . A load of 20 kg is applied on the water at the top. Find the velocity of the water coming out of the opening at the time when the height of water level is 50 cm above the bottom. Take g=10ms^-2

A area of cross section of a large tank is 0.5m^2 . It has an opening near the bottom having area of cross section 1cm^2 . A load of 20 kg is applied on the water at the top. Find the velocity of the water coming out of the opening at the time when the height of water level is 50 cm above the bottom. Take g=10ms^-2

The adjoining figure shows a solid of uniform cross-section whch is a trapezium in shape. If the length of the solid is 1m, find its volume

A long cylindrical tank of cross-sectional area 0.5m^(2) is filled with water. It has a small hole at a height 50cm from the bottom. A movable piston of cross-sectional area almost equal to 0.5m^(2) is fitted on the top of the tank such that it can slide in the tank freely. A load of 20 kg is applied on the top of the water by piston, as shown in the figure. Calculate the speed of the water jet with which it hits the surface when piston is 1m above the bottom. (Ignore the mass of the piston)

Water from a tap emerges vertically downwards with an initial spped of 1.0ms^-1 . The cross-sectional area of the tap is 10^-4m^2 . Assume that the pressure is constant throughout the stream of water, and that the flow is steady. The cross-sectional area of the stream 0.15 m below the tap is

Resistance of the conductor of length 5m and area of cross -section 4 mm^(2) s 0.02 Omega . Its resistivity is

Water from a tap emerges vertically downward with an initial speed of 3.0 m/s. The cross-sectional area of the tap is 10^(-4)m^2 . Assume that the pressure is constant throughout the stream of water and that the flow is steady. The cross-sectional area of the stream 2 m below the tap is:

A Steel wire is 1m long and 1mm^(2) in area of cross-section. If it takes 200N to streach this wire by 1mm , the forces that will be required to stretch the wrie of the same material and cross-sectional area form a length of 10m to 1002cm