The neighbor does more work. The neighbor does twice as much work.
Neighbors work: 4D(.5F)=2W
Your Work: D x F= W
buoyancy is the upward force that water exerts on an object. :)
Your feet are pushing backward against the floor, where friction prevents that backward motion and exerts an equal force that pushes you forward. If the floor were not fixed in place, it would move backward instead and you would stay in the same place. If friction did not exist, your foot would merely slide backward across the floor, and again you would stay in the same place.
Yes, anything on the surface of the planet which is at rest exerts a force on the ground and the ground exerts a force on it.
magnetic field
it moves
Rockets exert force at the upper part of the combustion chamber. This pushes the rocket forward.
Same force, opposite direction (according to Newton's Third Law).
...he exerts against the ground
Gravitational force exerts an attraction on objects.
It will if you don't hold on well enough or if you step on or grab a weak branch. When you put your weight on a branch, it pushes back with an upward force equal to the force gravity exerts on you.
buoyancy is the upward force that water exerts on an object. :)
Your feet are pushing backward against the floor, where friction prevents that backward motion and exerts an equal force that pushes you forward. If the floor were not fixed in place, it would move backward instead and you would stay in the same place. If friction did not exist, your foot would merely slide backward across the floor, and again you would stay in the same place.
It exerts normal force to you.
Yes, anything on the surface of the planet which is at rest exerts a force on the ground and the ground exerts a force on it.
A balloon powered car is moves because the balloon pushes out air. Whenever something exerts a force on something else (in other words, the balloon is exerting force on the air), then the object being pushed always exerts an equal and opposite reaction force on the object exerting force on it (in other words, the air exerts force on the balloon). Because the balloon is attached to the car, when the balloon is pushed by the air, the car is pushed. The law that for every force there is an equal and opposite reaction force is Newton's Third Law of Motion.
magnetic field
nothing