A demonstration helps students understand a principle of roller coaster design. Which answer choice correctly describes the ball's kinetic and potential energy? A) The ball has more potential energy at position X than at position Z. B) The ball has more kinetic energy at position Y than at position W. C) The potential energy and kinetic energy of the ball are equal at position X. D) The potential energy and kinetic energy of the ball are greatest at position Z.

The ball would have the most kinetic energy at the lowest point and the most potential energy at the top of the hill

Explanation:

Since you didnt add the picture I cant tell which multiple choice answer it would be, but I hope this helps :)

are you like autistic or something?

xd

the minimum amperage that the current in this wire would have to have so that its weight is completely supported by the magnetic force due to earth's field, assuming that no other forces except gravity act on it