Chapter 3 Gravity Force and Space What are the current costs involved in space

Chapter 3 gravity force and space what are the

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Chapter 3: Gravity, Force, and Space What are the current costs involved in space flight? What are prospects for the future? $22,000 per kilogram to get objects into orbit. Current prospects could be the Big Falcon Rocket (BFR), which has the capability of landing in the same position it needs to be for takeoff. It's also fully-reusable. What is your stance regarding funding for human-based space flight? It would be beneficial in order to find new forms of life and obtain natural resources. However, there is no guarantee that they might return. I think that with all of the technology we have developed we could easily fund a space flight without humans and still be able to obtain all of the information necessary. Chapter 4: Nuclei and Radioactivity Be aware of the damage done by the Hiroshima & Nagasaki bombs as well as Chernobyl and Fukushima. ○ Chernobyl: 24,000 deaths due to cancer. ○ Hiroshima: 52,000 deaths due to the atomic bomb. Most of the deaths were caused by the blast of the bomb rather than the radiation. ○ Fukushima: Tsunami flooded the area. Knocked our electricity. There was very few backup power. The water from the moderator stopped being cooled down. It got hotter then the reactor melted. It caused electrolysis to occur, and hydrogen caused the explosion. Chapter 5: Reactions, Reactors, and Bombs Consider obtaining the raw materials and the designs of nuclear bombs. For each type (uranium, plutonium, thermonuclear), what is hard about producing a feasible bomb? Two types of fission bombs:
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- Uranium: There are many isotopes found in nature, but you have to separate the 235 U from the 238 U. You must convert the uranium to UF 6 and then use gas centrifuges to separate the 235 U from 238 U. Once obtaining the purified form of uranium, the bomb is simple to build. You must have two parts (that each are less than the critical mass) and you must shoot them at each other to set off the bomb. Even high school student could make it. - Plutonium: they require implosion to make them work, so they’re difficult to design. It needs to be produced at a nuclear reactor. Plutonium is separated from the waste and then make it undergo a chain reaction. Plutonium has a half-life of 24,000 years. Should we reprocess plutonium from nuclear waste in the US as is done in France? Consider the implications of arguing either side. Rather than your opinion, I am interested that you understand the argument and trade-offs involved. Plutonium economy: - If breeder reactors (nuclear plants that can generate more fuel than it consumes) were more widely used, plutonium would be just as valuable in trade commodity that oil is today. Why to avoid: - People are afraid of the risk that come with selling plutonium on the open market, as buyers could potentially use the plutonium to use it for a bomb rather than a nuclear reactor.
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