When an object is oscillating in simple harmonic motion in the vertical direction, its maximum speed occurs when the object a) is at its highest point b) is at its lowest point. c) is at the equilibrium point d) has the maximum net force exerted on it. e) has a position equal to its amplitude.

probably not the "magnets"in the magnet, so to speak, are thought to be electrons orbiting in shells. vurrent loops two sides to the loop

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.