The turbine pits at Niagra Falls are 50m deep. The average horse power develop is 5000. If the efficiency of the generator `85%` , how much water passes through the turbine per minute ? Take `g=10m//s^(2)`.

Water is pumped out of a well 10m deep by means of a pump rated at 10 kW. Find the efficiency of the motor if 4200 kg of water is pumped out every minute. Take g = 10m//s^2.

In Koyna hydroelectric power station, water stored at a height of 600 metre fall on the turbine blades and the water flow avilable is 100 m^(3)//s . The efficiency of the turbine generator is 50%. What is the power available from the power station? [g=10 m//s^(2)]

Water is pumped out of a well 10 m deep by mean of a pump rated at 10 kW . Find the efficient of the motor if 4200 kg of water is pumped out every minutes . Take g=10 ms ^(-2) .

The power of a motor pump is 5 kW. How much water per minute the pump an raise to height of 20 m ? Take g = 10ms ^-2 .

A motor of power 10 kW is used to pump water from a well 20 m deep . Calculate the efficiency of the motor if it pumps 200 kg of water every minute . Take g = 10 m//s^(2)

A river 3m deep and 40m wide is flowing at the rate of 2km per hour.How much water will fall into the sea in a minute?

A river 3m deep and 40m wide is flowing at the rate of 2km per hour.How much water will fall into the sea in a minute?

A river 3m deep and 40m wide is flowing at the rate of 2 km/hr. How much water will fall into the sea in 2 minutes :-

An engine pumps up 100 kg water through a height of 10 m in 5 s . If effcienecy of the engine is 60% . What is the power of the engine? Take g = 10 ms^(2) .