If the power of a motor be 100 kW, at what speed can it raise a load of 50,000 N ?

The power of a motor a is 40 kW .At what speed can the motor raise a load of 20,000 N?

A block and tackle system has 5 pulleys. If an effort of 1000 N is needed in downward direction to raise a load of 4500 N, calculate: (a) the mechanical advantage, (b) the velocity ratio, and (c) the efficiency of the system

The power of a motor pump is 2kW. How much water per minute the pump can raise to a heiht of 10 m ? (Given g = 10 m//s^2)

The power of a motor is 15 HP and its maximum angular speed is 150 rad s^(-1) . What is the corresponding torque ?

A pulley system has a velocity ratio of 4 and an efficiency of 90%, calculate: The effort required to raise a load of 300 N by the system.

A series circuit has an impedance of 60.0 Omega and a power factor of 0.720 at 50.0 Hz . The source voltage lags the current. (a) What circuit element, an inductor or a capacitor, should be placed in series with the circuit to raise its power factor? (b) What size element will raise the power factor to unity?

Find the work done if a force of 1000 N is applied on a load and the load moves through a distance of 50 cm.

A 60 HP electric motor lifts an elevator having a maximum total load capacity of 2000 kg. if the frictional force on the elevator is 4000 N, the speed of the elevator at full load is close to : ( 1 HP = 746 W, g = 10 ms ^( - 2 ) )

The current gain in the common emitter mode of a transistor is 10. The input impedance is 20kOmega and load of resistance is 100k Omega . The power gain is