For a cretive writing assingment is my class I decided to write a paper called "The Odds of Surviving a Supernova". Needless to say I need to know how long it would take the shockwave to reach earth if our sun supernova'ed. I know that the sun is about 150,000,000,000 kiliometers from earth and that a class 1 supernova travels about 20,000 kilometers per second, I did the basic problem lots of times over and over but always end up with something like is takes 5 years, I know that's not rite so I would like if it I could get a second opionion. The equation I came up with 150,000,000,000/1,200,000=12500, 150,000,000,000=Distnce of Sun to Earth 1,200,000= 20,000 Kilometers per second converted to Kilometers per hour. I just need help understanding the question and what the answers mean. If you would like I could post the paper later to put it into context once I get an answer. Any help would be well....helpfull Thanks.