Concept explainers
It is estimated that the total explosive yield of all the nuclear bombs in existence currently is about 4.000 MT.
(a) Convert this amount of energy to kilowatt−hours, noting that
(b) What would the monetary value of this energy be if it could be converted to electricity costing 10 cents per kW.h?
Want to see the full answer?
Check out a sample textbook solutionChapter 32 Solutions
College Physics
Additional Science Textbook Solutions
Genetic Analysis: An Integrated Approach (3rd Edition)
Biology: Life on Earth (11th Edition)
Applications and Investigations in Earth Science (9th Edition)
Chemistry: Structure and Properties (2nd Edition)
College Physics: A Strategic Approach (3rd Edition)
Concepts of Genetics (12th Edition)
- A nuclear physicist finds 1.0of 236Uin a piece of uranium ore (T1/2=2.348107y) . (a) Use die decay law to determine how much 236Uwould had to have been on Earth when it formed 4.543109yago for 1.0gto be left today, (b) What is unreasonable about this result? (c) How is this unreasonable result resolved?arrow_forwardIt is estimated that the total explosive yield of all thenuclear bombs in existence currently is about 4,000 MT.(a) Convert this amount of energy to kilowatt-hours, notingthat 1 kW ⋅ h = 3.60×106 J .(b) What would the monetary value of this energy be if it couldbe converted to electricity costing 10 cents per kW·h?arrow_forwardSuppose you are working as a reactor operator in the world’s largest nuclear power station at Kashiwazaki-Kariwa Nuclear Power Plant, Japan. The first unit in this station began to operate in 1985. Suppose the rate at which the nuclear power plant produces radioactive waste is proportional to the number of years it has been operating such that 500 pounds of waste is produced every year. Also, suppose that the waste decays exponentially at a rate of 5% per year. At the beginning of 2011, The Fukushima Daiichi nuclear disaster caused sever damages in the units which released the radiation waste to the atmosphere. Therefore, all the units were closed in 2011 for safety inspection. This left japan completely without nuclear-produced electrical power. Finally, the unit began to operate at the beginning of 2019. As a reactor operator, you are asked to do the following: a. Model the generation of the Kashiwazaki-Kariwa Nuclear Power Plant radioactive waste as a function of time. b.…arrow_forward
- [“] An element X of atomic number 98 undergoes alpha-decays. The constant rate of alpha decay is n particles per second. (Atomic mass number of X is 251 u). If the element Y (daughter nucleus) has atomic mass of 239 u. What is the mass of total number of alpha particles radiated in grams; (2) 49 (b) 12 g () 2x 10723 g d 4x 10723 garrow_forwardSeawater contains 3 mg of uranium per cubic meter. (a) Given that the average ocean depth is about 4 km and water covers two-thirds of Earth’s surface, estimate the amount of uranium dissolved in the ocean. (b) Estimate how long this uranium could supply the world’s energy needs at the current usage of 1.5 × 1013 J/s. (c) Where does the dissolved uranium come from? Is it a renewable energy source? Can uranium from the ocean satisfy our energy requirements? Discuss. Note: Breeder reactors increase the efficiency of nuclear fuel use by approximately two orders of magnitude.arrow_forwardSeawater contains 3 mg of uranium per cubic meter. (a) Given that the average ocean depth is about 4 km and water covers two - thirds of Earth’s surface, estimate the amount of uranium dissolved in the ocean. (b) Estimate how long this uranium could supply the world’s energy needs at the current usage of 1.5 x 1013 J/s. (c) Where does the dissolved uranium come from? Is it a renewable energy source? Can uranium from the ocean satisfy our energy requirements? Discuss. Note: Breeder reactors increase the efficiency of nuclear fuel use by approximately two orders of magnitude.arrow_forward
- A pure sample of a newly discovered radioactive isotope is discovered. It has a half-ife of S9 min. Determine how long until only 1/16 of the original amount remains,arrow_forwardCan you answer number 1?arrow_forwardHow many kilograms m of uranium-235 must completely fission spontaneously into 140Xe, 92Sr, and three neutrons to produce 1200 MW of power continuously for one year, assuming the fission reactions are 26% efficient? m = ? kgarrow_forward
- An unknown radioactive element decays into non-radioactive substances. In 360 days the radioactivity of a sample decreases by 34 percent. (a) Find the decay constant k. (Round your answer to 5 decimal places.) (b) What is the half-life of the element? (Round your answer to two decimal places) half-life: (days) (c) How long will it take for a sample of 100 mg to decay to 59 mg? (Round your answer to two decimal places) time needed: (days)arrow_forwardCan you please help with the attached question? Thanks!arrow_forwardThe energy released by each fission within the core of a nuclear reactor is 2.00×102 MeV. The number of fissions occurring each second is 2.10×1019, Determine the power (in watts) that the reactor generates. Number______ Units_____.arrow_forward
- College PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax CollegeCollege PhysicsPhysicsISBN:9781285737027Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningUniversity Physics Volume 3PhysicsISBN:9781938168185Author:William Moebs, Jeff SannyPublisher:OpenStax
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningModern PhysicsPhysicsISBN:9781111794378Author:Raymond A. Serway, Clement J. Moses, Curt A. MoyerPublisher:Cengage Learning