A motor pumps water at the rate of `V m^(3)` per second, against a pressure `P Nm^(-2)`. The power fo the motor is watt is

A pumping machine pumps water at a rate of 60 cc per minute at a pressure of 1.5 atm. The power delivered by the machine is

A pumping machine pumps water at a rate of 60 cc per minute at a pressure of 1.5 atm. The power delivered by the machine is

4m^(3) of water is to be pumped to a height of 20 m and forced into a reservoir at a pressure of 2xx10^(5)Nm^(-2) . The work done by the motor is (external pressure = 10^(5)Nm^(-2) )

4m^(3) of water is to be pumped to a height of 20 m and forced into a reservoir at a pressure of 2xx10^(5)Nm^(-2) . The work done by the motor is (external pressure = 10^(5)Nm^(-2) )

A motor pump is delivering water at certain rate. In order to increases the rate of delivery by 100%, the power of the motor is to be increased by

An electric motor in a crane while lifting a load produces a tension of 4000 N in the cable attached to the load. If the motor is winding the cable at the rate of 3ms^(-1) , the power of the motor espressed in kilo watt units must be