According to Newton, which of these will determine if and how an object will move? 1. how much energy the object has
2. how unstable the object is
3. whether a net force acts on the object
4. he total mass of the object

3

Explanation:

answer( sicar );

the answer is the first electromagnet (a). this is because it has more coils around the ferromagnetic material. increasing the number of coils increases the surface area in which the metal interacts with the current in the coil. this enables more atoms in the metal to become aligned hence becoming more magnetized.