![]() ![]() If light nuclei are forced together, they will fuse with a yield of energy because the mass of the combination will be less than the sum of the masses of the individual nuclei. In nuclear physics, nuclear fusion is a nuclear reaction in which two or more atomic nuclei collide at very high energy and fuse together into a new nucleus, e.g., helium. But not all the total energy can be recovered in a reactor. The total energy released in fission can be calculated from binding energies of the initial target nucleus to be fissioned and binding energies of fission products. In reactor physics, neutron-induced nuclear fission is the process of the greatest practical importance. The decay process is called spontaneous fission, and it is a very rare process. Nuclear fission is either a nuclear reaction or a radioactive decay process in nuclear physics. The fission process often produces free neutrons and photons (in the form of gamma rays) and releases a large amount of energy. Nuclear fission is a nuclear reaction in which the nucleus of an atom splits into smaller parts (lighter nuclei). Whether the reaction is exothermic or not depends on the binding energy of the resulting nuclei. Nuclear fusion is a nuclear reaction in which two or more atomic nuclei collide at very high energy and fuse together into a new nucleus.Nuclear fission is a nuclear reaction in which the nucleus of an atom splits into smaller parts (lighter nuclei).most dams have been put in and its hard to expand How can dams cause species die off due to an increase in the temperature of rivers downstream? Downstream waters can become unnaturally warm because of the reduced amount of water released.Nuclear fission and nuclear fusion are different types of reactions that release energy (when exothermic) due to the formation of nuclei with higher nuclear binding energy. kinetic Hydroelectric power accounts for approximately how much of the world's electricity production? 16% Which of the following statements is true about hydropower? Hydropower cannot expand much more in the future in the United States. produces significantly less emissions than fossil fuel combustion Hydropower uses the _ energy of water to generate electricity. ![]() According to the International Atomic Energy Agency (IAEA), nuclear power _. control rod How is cellulosic ethanol different from traditional corn-based ethanol? It can be made from the nonfood portions of plants and from wood. turbine A _ is composed of metallic alloys, and slows fission in a nuclear reactor by absorbing neutrons. positive Steam produced from the heat generated by nuclear fission is used to turn the blades of the _ in a nuclear power plant. moderator An uncontrolled, self-sustaining nuclear fission chain reaction is an example of _feedback. cogeneration The _ is the substance that slows down the neutrons in a nuclear reactor so they are at the proper speed to break apart nuclei and sustain nuclear fission. grows fast and produces high-quality lipids Most biomass-fueled power plants produce electricity and heat that can be used by people in a process known as _. the identification of several algae species as potential sources of biofuel The team is looking for an organism that _. growing algae under different conditions and measuring their lipid production Dr. ![]() Rose Ann Cattolico and her assistants at the University of Washington involves _. co-firing After considering all the steps involved in constructing power plants and power generation, which one of the following energy sources produced the LEAST amount of greenhouse gas emissions as determined by the International Atomic Energy Agency? nuclear Which energy source's annual growth rate is about four times greater than that of tidal power? solar The work done by Dr. biomass The process in which biomass is combined with coal and burned in a high-efficiency boiler is called _. 700 million years What disabled the emergency power generators at the Fukushima Daiichi nuclear plant in Japan and led to the reactor meltdowns? tsunami _ is an energy source that consists of organic material from living or recently living organisms. nuclear power plants currently stored? n pools of water or in large "dry casks" at the power plants at over 120 sites The amount of time it takes for the radiation in a sample of uranium-235 waste to be reduced by half is _. Where is the high-level nuclear waste (used fuel rods, highly radioactive control rods) produced by U.S. What does the moderator do in a nuclear fission reactor? It slows down the neutrons so that they can react with the nucleus of a uranium atom. ![]()
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