45 points and brainliest for fastest and best !
which list accurately identifies the hierarchy of space from largest to smallest?

solar system, galaxy, planet, universe
galaxy, solar system, planet, moon
galaxy, solar system, universe, moon
solar system, universe, galaxy, moon

Asled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slidesa distance d1 down the slope and then covers the distance d2 alongthe horizontal terrain before stopping. find the coefficient ofkinetic friction μk between the sled and the ground, assumingthat it is constant throughout the trip. find the coefficient of kinetic frictionμk. express your answer in terms of someor all of the variables d1, d2, and θ.