Why do you think that some asteroids tumble end over end through space while other asteroids rotate around their axis?

Write down two additional questions about earth's magnetic field that will make your presentation more informative.

What’s #16 asking me and how do i solve it?

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.