A conservative force is not path dependent. A conservative force is a force with the property that the work done in moving a particle between two points is independent of the taken path.
conservative
when your moving water what does mechanical energy change to
...is to change electrical energy into mechanical energy.
It will still be heat energy, but it can be converted to mechanical energy
electrical to mechanical
There is a transformation involved between potential and kinetic energy. Mechanical energy is involved in overall process.
mechanical energy !
Stored mechanical energy to mechanical energy
Most electric motors change electrical energy into rotational mechanical energy. A few electric motors change electrical energy into linear mechanical energy.
mechanical energy !
Yes.
Yes, and its one of the most efficient ways to get mechanical energy at 95%.