Water is flowing in a river at `2 ms^(-1)`. The river is `50 m` wide and has an average depth of `5 m`. The power available from the current in the river is (Density of water `= 1000 kg m^(3)`

Water in a river 20 m deep is flowing at a speed of 10 ms^-1 . The shearing stress between the horizontal layers of water in the river in Nm^-2 is (Coefficient of viscosity of water = 10^-3 SI units)

A river 15 m deep 50 m wide is flowing at the rate of 2 cm per second. How many litres of water will fall from the river into the sea in 9 hours ?

A water pump raises 50 litres of water through a height of 25 m in 5 .Calculate the power of the pump required . (Take g=10 N kg^(-1) and density of water =1000 kg m^(-3) )

A river water is flowing at 5ms^-1 . The depth of river water is 10m. What is the shearing stress between horizontal layers of the river water? Viscosity of water is 1 mili decapoise.

A stone of cross - sectional area 10m^(2) completely stops the flow of a river current of 5 m cdot s^(-1) . What is the force exerted on the stone? (denstiy of water = 1000 kg cdot m^(-3) )