You have only done as much external work on the box as the distance it moves: work = force x distance. If it does not budge no work is done on the object. You have done "internal" work on your muscles which converts to heat energy, but technically speaking, no external work is done on the object
Work, more specifically "positive" work because the box moved in the direction in which the force was applied.
push
When you push a box forward and it moves forward, you have done positive work on it. This is because you applied a force in the direction of its displacement, resulting in the box moving in the same direction as the force applied, indicating positive work.
Yes.
All of it is counted as work.
Yes.
Negative work is being done when you push on a box but it moves backwards. This means that the force you apply is in the opposite direction of the displacement of the box, resulting in a decrease in its energy.
Thrust. The pull of the propellers, the push of the jet engine, the pull of gravity.
thrust from turbines or the pul from propellas
In wagon pulling, there is a harnessing system involved which is attached to the breast of the horse. When a horse pulls forward, the harness, which is attached to the wagon moves with him as well, therefore moving the wagon forward.
friction
On the forward stroke. You naturally push down as you push forward.