The formation of which of the following cannot be explained by the nebular model? a. the sun c. the milky way galaxy b. the planets in our solar system d. comets and asteroids select the best answer from the choices provided a b c d

If a lever operates at a mechanical disadvantage, it means that the a. effort is farther than the load from the fulcrum b. load is far from the fulcrum and the effort is applied near the fulcrum c. lever system is useless d. load is near the fulcrum and the effort is at the distal end