Pluto: Group of answer choices has no moons has a nearly circular orbit around the Sun, due to its interactions with other objects in its vicinity is massive enough to substantially affect the orbit of Uranus, which led to its discovery has a density intermediate between that of the terrestrial and Jovian planets is about as large as the planet Mercury

At 20∘c, the hole in an aluminum ring is 2.800 cm in diameter. you need to slip this ring over a steel shaft that has a room-temperature diameter of 2.804 cm . 1. to what common temperature should the ring and the shaft be heated so that the ring will just fit onto the shaft? coefficients of linear thermal expansion of steel and aluminum are 12×10−6 k−1 and23×10−6 k−1 respectively.