hey guys, i'm new to physics .. and to be frank it seems scary. :tongue: anyways i was wondering if anyone could help me with this: The diameter of milky way is 1.0 *10^5 lightyears (ly). The distance to Andromeda is about 2.0 million ly. If a scale model represents the milky ways and andromeda galaxies as dinner plates 25 cm in diameter, determine the distance between the two plates. thanks you guys!!!