Un sistema planetario está formado por un conjunto de planetas que orbitan alrededor de una o más estrellas, nosotros giramos en torno al sol, nuestro sistema planetario se llama: * Sistema solar
Aquari u s

Gliese 876
Vía láctea

Complete these sentences. if a roller coaster train has a potential energy of 1,500 j and a kinetic energy of 500 j as it starts to travel downhill, its total energy isj. once the roller coaster train gets closer to the bottom of the hill, its kinetic energy increases to 1,100 j, and its potential energy decreases to j. when the train reaches the bottom of the track and is traveling along the ground, its kinetic energy isj.