The half-life of carbon-14 is 5,730 years. This means that it takes 5730 years for a mass of carbon-14 to radioactively decay to half its mass...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answe...
What is the rate of radioactive decay? The rate of decay for carbon-14 is -0.693 B and its half-life is 5,730 years. If an organism has 45% of its carbon-14 compared to the living sample, how old is the fossil? What decays first during radioactive decay?
---Save energy, produce carbon. A. more; more B. less; more C. less; less D. more; less 相关知识点: 试题来源: 解析 D [解析] 试题分析:more更多的;less更少的。句意:低碳生活方式是什么样子?——节省更多的能源,产生更少的碳素。结合语境可知选D。 考点:形容词辨析 点评:词义辨析考的是学...
【题文】 —What’s the low-carbon(低碳的) lifestyle like?—Save energy, and produce carbon. A. more; more B. less; more C. less; less D. more; less. 相关知识点: 试题来源: 解析 【答案】D. 【解析】试题分析:句意:--什么是低碳生活?--节约更多能源,制造更少的二氧化碳。more更多的...
Carbon 14 Dating Measurements A radiocarbon measurement is termed a conventional radiocarbon age (CRA). The CRA conventions include (a) usage of the Libby half-life, (b) usage of Oxalic Acid I or II or any appropriate secondary standard as the modern radiocarbon standard, (c) correction for ...
What are the half-lives of the following common isotopes: (a) Carbon - 14 (b) Uranium - 238 (c) Uranium - 235 The half-life of radioactive isotope: Half-life is the measurement of the rate of decay of radioactive materials. The half-life is the...
supply SAF to DHL Express hubs around the world. SAF is produced from waste and alternative feedstock, like used cooking oil, corn and hydrogen. As the only scalable solution to reduce emissions in the next decade, SAF can effectively reduce life cycle emissions of aviation fuel by up t...
As a result, in order that w e can make the earth a better place to live for the generations to come, the idea of low-carb on living is more and more popular in the wor Id. How can we live a low-carbon life? First of all, when we go to school or some other plac es, let...
As a result, in order that we can make the earth a better place to live for the generations to come, the idea of low-carbon living is more and more popular in the world. How can we live a low-carbon life? First of all, when we go to school or some other places, let’s go ...
Answer to: Aproximately 9 half lives have passed, and too little carbon-14 remains in an object to be useful in dating the object. What is the...