Flail Chest (Definition) Flail chest is a life threatening medical condition in which multiple segments of the rib cage have been broken and are loosened. These segments cause severe bruising and damage to the lung. ...Read more.
The Milky Way is the second-largest galaxy in the Local Group, with its stellar disk approximately 100,000 ly (30 kpc) in diameter, and, on average, approximately 1,000 ly (0.3 kpc) thick.
A light-year is 9.5 Ã 10 ^ 12 km. The diameter of the Milky Way galaxy is estimated to be 100,000 light-years. A. What is the diameter of the Milky Way in kilometers? B. The speed of light is about 3 Ã 10^8 m/s. What is the speed of light in kilometers.