At the top point of the flight, what can be said about the projectile's kinetic and potential energy? At the top point of the flight, what can be said about the projectile's kinetic and potential energy? Both kinetic and potential energy are at their maximum values. Both kinetic and potential energy are at their minimum values. Kinetic energy is at a maximum; potential energy is at a minimum. Kinetic energy is at a minimum; potential energy is at a maximum.

At the top point of the flight. the projectile's kinetic energy is at a minimum; potential energy is at a maximum.

Explanation:

For the object,Kinetic energy, K = \frac{1}{2}mv^2

While the Potential energy of the object, U = mgh

When an object is at its maximum height, h = h_{max}, the object has zero velocity ( y-component)

This means that at the maximum height potential energy, U=  mgh and kinetic energy K=\frac{1}{2}m(0)^2=0

Therefore, at the maximum height, the object's kinetic energy is at a minimum and potential energy is at a maximum.

b.

explanation:

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.