At the same time, pound would be used as a unit of force, and so you have impulse in lb * s, the fuel quantity also in lb, and the specific impulse in lb *s / lb = seconds. Which is, of course, a unit of weight and not a unit of mass. What's worse, while imperial system has a unit of mass, which is called slug, engineers never used it. Unfortunately, a lot of Western literature on rocketry has been dominated by United States early on, and as we all know, American aerospace engineers worked in imperial units. In fact, that's what you supposed to be working with in metric, and no g 0 should be showing up in a rocket equation. Of course, weight of propellant is just mass of propellant times g 0 and that's why the two definitions are different by this exact factor.įor a historical note, defining I SP in m/s is more correct. Or you can define it per weight of propellant, and then you get units of seconds. You can define impulse per mass of propellant used, and then if you do the math, the units are m/s. And this is where the two definitions diverge in how you define quantity of propellant. More precisely, in this case, it is the amount of impulse you get from a quantity of propellant. (These are the same in metric, because N = kg * m/s 2) And the word "specific" means the amount you get per some quality of something. Impulse is the change in momentum and has units of N*s or alternatively kg * m/s. If the source you are using isn't quoting units, look for another source. Could vehicles moving in the area cause problems? Can they track the radiation around as they move because of the preexisting soil radiation? I'm assuming it would take a larger hit to do more damage, but how much would it take to start causing problems. Is any of this in that area? Or is that all farther away? There are supposedly apartments getting hit from one side or the other with the helicopters and possibly anti air ordinance interacting(not to mention possible direct fighting around the plant.). I would think it could be dangerous if it was struck somehow. In fact if it's closer to Russia can it hit Russia or Belarus as it's close to the border. Is it safe to assume it can't do much to the rest of the region and would only spread locally or can it be worse? If the soil were disturbed by anything how far could it go? What else could happen to it and the surrounding area to cause harm? Or is it relatively safe? How far could an explosion of any type make a dirty bomb or similar problems? Where smaller numbers might make it seem like a better idea and lead to a higher chance of actual use.Ĭould Chernobyl turn into a dirty bomb if an accident of any kind hit it. So the large missile might make 0 exchanges happen. Which could lead to problems or a larger exchange. The only downside to less missiles is the safer a nuclear exhange appears to be for a single country the more likey a small scale nuclear exchange is. But that is what stuff I was reading sounds like. The rest are a lot of in storage nukes or something. I think some of the counts are total warheads and not just missiles. But I assume some of them or more are mirvs with a bunch of warheads. Yea, I think russia only have like 700 something actual ballistic missiles. some place like Pucallpa, Peru or Mbahiakro, Cote d'Ivoire) this might be more or less comforting. But depending upon where you are in the world (i.e. perhaps not has 'calming' as one might think. Russia Has A Massive Stockpile of 'Tactical' Nuclear Weapons - 19FortyFive A whole bunch have been reserved for local and short-range tactical use. Also - when looking at the broad number of warheads don't default to thinking they're all on ICBMs waiting to kill cities.
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