If the marble he sends down the track is 8.51 kg, and the height of his roller coaster is 7.2 m then what is the total energy for this closed system?

answer: i pick a

explanation:

the electric field is a “force field” around a charged object that illustrates the direction the electric force would push an imaginary 

the moon affects the earth gravitation ally, causing certain motions of that body and also producing tides in its ocean and atmosphere. the tidal wave in our atmosphere is, however, far too minute to be an effective cause in any known meteorological phenomenon.

explanation:

battery with hi vtge high val resist in series