Seawater 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.

Q: Q. 8: K.E. per unit volume is given by 3 2 (a) E=P (b) E=² 3 3 (c) E=mv² (d) None of these…

A: We need to compute- K.E. per unit volume=? The data given as- K.E. of gas molecules.

Q: A film badge worn by a radiologist indicates that she has received an absorbed dose of 3.3 x 10-7…

A: 1 Gy of absorbed radiation means = 1Jole of energy absorbed per 1 Kg  OR  100 erg of energy per…

Q: Estimate how many large maple trees would be needed to run a dishwasher for one year. Assume the…

A: Dishwasher uses 1.1 × 108 J of energy per year Large maple tree captures 10 kg of carbon (in CO2)…

Q: Does the average distance that a neutron travels through fissionable material before escaping…

A: Two pieces of fissionable material are assembled into one piece.

Q: It is thought that there is at least 4*10^7 kg of uranium-235 that could be minded. The energy…

A:

Q: A sample contains radioactive atoms of two types, A and B. Initially there are five times as many A…

A: To solve for the half-life of type B atoms, we start by defining the initial quantities and using…

Q: At the beginning of an experiment, a scientist has 164 grams of radioactive goo. After 135 minutes,…

A:

Q: At the beginning of an experiment, a scientist has 336 grams of radioactive goo. After 60 minutes,…

A: Given data: The initial mass of the radioactive goo is, M0 = 336 gram The final mass of the…

Q: How much energy (in J) is required to evaporate 25% of 4g of water currently at 100 oC? The answer…

A: Given: total mass of water Mt = 4 g 25 % of total mass m = 0.25*4g = 1 g = 10-3 Kg temperature T =…

Q: The Dead Sea scrolls, a collection of written texts mostly on dries animal skins, were found in…

A:

Q: It is estimated that the total explosive yield of all the nuclear bombs in existence currently is…

A: a. the energy of the bombs in kWh is E=4000 MT×4.184×1015 J1 MT×1 kWh3.6×106 J=4.6489×1012 kWh

Q: Calculate the energy released, in calories, when 8 g of matter is converted to energy. Express your…

A:

Q: A radioactive material disintegrate at such a rate that after 9.3 seconds, only 81% of the original…

A: Please find the solution in the next step

Q: The following experimental data were obtained from the reaction A + B → C: experiment| [A] (М) | [B…

A: 2. Rate law equation:dxdt=kAmBn-----(1)From the above…

Q: Using the ideal gas equation, calculate the density of radon gas at 8.0 K and 9.0 atm, Give your…

A: Given that,Temperature, T=8 KPressure, P=9 atmdensity=?

Q: The hot liquid magma of molten earth was on full display in Mauna Loa as it has been actively…

A: Given:   Potassium-40, uranium-238, and thorium-232 have half-lives of 1.25 billion, 4 billion, and…

Q: If the delta variant  death rate per day (Po) peaked at 2000 in late September and declined at the…

A:

Q: Which of the following statements is true of nuclear fusion? It generates high-level…

A: Nuclear fusion to light nuclei combine and heavier nuclei this type of reaction known as nuclear…

Q: Consider the following radioactive decay chain of fission products, where nuclide D is stable. A0,…

A:

Q: The efficiency of a  nuclear power plant is 39.9.0%. If 312.66.0 kW of power are produced by the…

A:

Q: The mass numbers of two isotopes of cobalt are 59 and 60. (a) How many protons and how many…

A: Concept: Mass number is the sum of number of electron and proton.  A = n + p   (a) 1) When mass…

Q: of the 2000 Value. 23. A new offshore wind project will consist of 200 wind turbines, each with a…

A: Number of wind turbines = 200 capacity of each turbine = 4 MW cost to build each turbine = $1.2…

Q: Sr-90 is a byproduct of nuclear reactions inside nuclear reactor and a has a half-life of 29 years.…

A: Some configurations of protons and neutrons inside a nucleus are unstable. When an atomic nucleus is…

Q: One of the nuclear fission reaction that can happen in a nuclear reactor is the fission of…

A:

Q: A person on a diet might lose 2.6 kg per week. Express the mass loss rate, as if the dieter could…

A: A person on a diet lose 2.6 kg per week. We need to express the mass loss rate if the dieter could…

Q: A radioactive material disintegrate at such a rate that after 3.4 seconds, only 79% of the original…

A: time = 3.4 seconds Let the original amount of substance = Nofinal amount of susbstance = N It is…

Q: 2. A person on a diet loses 2 kg per week. Find the average rate of mass loss in milligrams every:…

A: Losses mass (m) = 2 Kg = 2000000 miligramTime (t) = 1 week = 7 days = 604800 seconds

Q: A sample of uranium-235 is to be studied. How long will it take for the sample to reach 65% of its…

A: An unstable nucleus will undergo radioactive decay. They will release radiation and become stable.…

Q: a sampling of 15 million particles coming from an exhaust vent contained 60 sulfur dioxide…

A: 60 particles of Sulphur dioxide in 15 million particles can be expressed as a fraction 6015 million…

Q: Problem 9:   Answer the following questions based on the graph of a radioactive iodine isotope shown…

A: (a) The half life of the material in days  Half-life is the time in which the 50 percent of iodine…

Q: The advertising for a new genetic screening of fetuses, through sampling the mother's blood, claims…

A: Accuracy of a lab result (P)= 99.9% Number of tests done in a year = 4 million

Q: One isotope contains an equal number of protons and neutrons, another isotope of the same element…

A: Let AM1 be the atomic mass of first isotope and AM2 is the atomic mass of second element.  We know…

Q: A sample was weighed three times and the following results were obtained: 12.52 g, 12.50 g, and…

A: Average value is given by the sum of given values divided by total number of values .

Q: Elemental carbon has 6 protons and 6 neutrons. This is often described as carbon-12. Carbon-13 has 6…

A: Mass Number = Number of protons + Number of neutrons For Plutonium: Mass Number = 244 Number of…

Q: The rate of a simple enzyme reaction is given by the standard Michaelis–Menten equation: rate = Vmax…

A: Given: Rate = Vmax SS+km

Q: Some people think nuclear energy is good and should be used widely for energy production. Other…

A:

Q: A parallel-plate capacitor is disconnected from a battery, and the plates are pulled a small…

A: A parallel-plate capacitor is disconnected from a battery, and the plates are pulled a small…

Half Life

The concept of Half Life has numerous practical applications some of them includes figuring out the effective drug dosage to finding out when a radioactive becomes safe to use. If you look for a career in Nuclear Physics you will need this concept.