The required work done to pump all the water from the tank would be as follows:
376966.991 Joules.
Work is the scientific term used to describe the action of a force which moves an object.
When a constant force is applied to move an object a distance , the amount of work performed is W = F ⋅ d .
The SI unit of force is the newton, (kg m/s ), and the SI unit of distance is a meter (m).
To express this concept mathematically, the work W is equal to the force f times the distance d, or W = fd. If the force is being exerted at an angle θ to the displacement, the work done is W = fd cos θ.
Learn more about work done here:
