A `30m` deep well is having water up to `15 m`. An engine evacuates it in one hour . The power of the engine. If the diameter of the well is `4m` is

A 30m deep well is having water upto 15 m . An engine evacutes it in one hour . The power of the engine. If the diameter of the well is 4m is

A 25 m deep well contains water upto 15 m . An engine evacuates the well in 1.5 hrs . If the diameter of the well is 2 m ,calculate the power of the engine .

An automobile engine of mass m accelerates and a constant power P is applied by the engine. The instantaneous speed of the engine will be

An engine pumps 800 kg of water through height of 10 m in 80 s. Find the power of the engine if its efficiency is 75%

A river 1.5 m deep and 30 m wide is flowing at the rate of 3km per hour. The volume of water that rums into the sea per minute is

An automobile engine of mass m accelerates and a constant power Pis applied by the engine. The instantaneous speed of the engine will be

An agriculture field is in the form of a rectangle of length 20m width 14m.A10m deep well of diameter 7m is dug in a corner of the field and the earth taken out of the well is spread evenly over the remaining part of the field.Find the rise in its level.

Too maintain a rotor at a uniform angular speed of 100 rad s^(-1) , an engine needs to transmit torque of 100 N m. The power of the engine is

The inner diameter of a well is 8 m. If the well is 14 m deep, then what is the volume ?