A ball is dropped from a tall bridge of height 48 m. What will the speed of the ball be immediately before it hits the ground, in units of m/s?

Explanation:

We use the kinematic formula for constantly accelerated motion given below:

b. latent learning (the word "latent" itself means something that exists but isn't obvious, only under certain conditions! )

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.