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physics-nuclear reactors

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Japan's Nuclear Crisis
I don't know why. Please help me. Why did the reactors at the Fukushima plant overheat? Because of Nuclear power generation?

Chemistry
I have to summarize 10 articles relating to the topics we had covered in class. However, there are 3 sources out of the 10 that I don't understand. Could someone possibly go through the sources and summarize them. 1.) This article covers Nuclear Chemistry (Nuclear Reactors) to...

science
should we produce more nuclear reactors or less of them?

Organic and Nuclear Chemistry
Regarding nuclear reactions that release a great deal of energy, which statement is true? A. In a fission chain reaction, a uranium nucleus struck by a high-energy neutron emits two neutrons. B. Nuclear fission releases more energy per unit mass than does a fusion reaction. C...

Physics Ques.
In nuclear reactors, subatomic particles called neutrons are slowed down by allowing them to collide with the atoms of a moderator material, such as carbon atoms, which are 12 times as massive as neutrons. If the neutron has an initial speed of 1.0×107 m/s, what will be its ...

Forensics
Strontium-90 is a radioactive waste product from nuclear reactors. It has a half life of 29 years. How many years would it take for a quantity of strontium-90 to decay 1/16 of its original mass?

AP Environmental Science (URGENT)
Strontium-90 is a radioactive waste product from nuclear reactors. It has a half-life of 29 years. How many years will it take for a quantity of strontium-90 to decay to 1/16 (one-sixteenth) of its original mass?

physics-nuclear reactors
a) Let's assume a nuclear reactor was a completely isolated system, such that no matter particles can escape from it and the only thing that can get out is energy in the form of heat and radiation. If we weigh the whole reactor before switching it on, and again after it has ...

Science
Which statement is true regarding nuclear energy? (Points : 1) Since 2005, global private investments in nuclear energy totaled $100 million dollars. Nuclear plants cost 2-3 times as much as new windpower to build. Nuclear energy currently produces 50% of the U.S.’s energy ...

LIB
The International Atomic Energy Agency (IAEA) 1. controls nuclear weapons stockpiles. 2. inspects nuclear power plants. 3. tests nuclear weapons. 4. builds nuclear power stations. I think it's number 4

Science
What is a nuclear membrane This is a biology question, not nuclear physics. You will find a definition at http://www.answers.com/topic/nuclear-envelope

Physics
I posted this earlier and no one responded so I am going to try again. I have to Distinguish between atomic physics and nuclear physics, so here is what i have. which deals with the atom as a system of electron(s) and a nucleus and nuclear phys

Math
Cooling towers for nuclear reactors are often constructed as hyperboloids of one sheet because of the structural stability of that surface. Suppose all horizontal cross sections are circular, with a minimum radius of 200 feet occurring at a height of 600 feet. The tower is to ...

Physics
Do today's nuclear power plants use nuclear fission, fusion, or both?

Physics
Could someone help me to say this better? I have to Distinguish between atomic physics and nuclear physics, so here is what i have. which deals with the atom as a system of electron(s) and a nucleus and nuclear physics, which considers atomic nuclei alone

Physics check
Today's nuclear power plants use nuclear..... to generate electricity. fission?

physics
What are differences between nuclear fusion and nuclear fission?

nuclear physics
An atom of Radium-228 transmutes to radon-222. Write the nuclear equation for this decay.... How ??

physics
Neon-20 has a nuclear mass of 19.992439 amu. the total nuclear binding energy for Ne-20 is? (Mprotons=1.6726x10^-27 kg) (Mneutron=1.6749x10^-27kg)

science
Which statement is true regarding nuclear energy? (Points : 1) Nuclear power produces no greenhouse gasses and thus poses no environmental threats. Nuclear plants rely on a massive industrial infrastructure using fossil fuels. Due to strict safety regulations, nuclear power ...

Science
1. Massive amounts of destructive energy are released when a nuclear fission bomb explodes. Where does that energy come from? a) A chain reaction occurs when uranium atoms split, releasing nuclear energy. b) Molecules break down, releasing chemical energy. c) Hydrogen atoms ...

Chemistry
1. What is the change in atomic mass number when an atom emits an alpha particle? decreases by 2 *decreases by 4 increases by 2 increases by 4 2. If an isotope decays by the process of beta emission, ____. the mass number changes *the atomic number changes protons are given ...

Physical Science
Hello, Can soeone tell me if I have the correct answer? Thank You, My answer- A In a nuclear reaction energy is released by the combination of two elements into a new element. This process is an example of- A. Nuclear Fusion B. Nuclear Fission

Geography
1-What is a benefit of nuclear power? 2-How does nuclear compare to coal? 3-What are some problems with nuclear power? 4-What does rector do? 5-What does a generator do? 6-What is the waste of these power stations, what is the problme with it? 7-What must be considered when ...

Biology
In what part of mitosis does the nuclear membrane disappear? My book says that in prometaphase, "the nuclear membrane fragments", but when I looked online to verify this, I found some sources that said that nuclear membrane disappears in prophase, and some sources that said ...

chemistry
Which of the following statements are true? Fusion reactions result in nuclei with higher Z. To keep a nuclear power plant going, a chain reaction must be maintained. Nuclear fusion produces no long-lived radioactive by-products. The Sun is a nuclear fusion reactor.

chemistry
Any help with the following questions would be greatly appreciated! 1) What is the fuel source in nuclear power plants? How is that energy harvested from the source? 2) How does the fuel source used in power plants differ from the fuel source used in nuclear bombs? 3) What ...

physics
Are the nuclear fission power plants operating around the world today safe? How does the radiation from a nuclear power plant compare to other sources of radiation?

Physics
Before a nuclear reaction, there is 0.01000 kg of uranium. After the nuclear reaction, there is 0.00950 kg of uranium. How much energy was released? (h = 6.63 × 1034 Js)

Socials
Why did the reactors at the Fukushima plant overheat?

Science
How does a nuclear power plant produce energy? A. Through solar panels B. Through nuclear fission reactions C. Through geothermal heat D. Through nuclear meltdown reactions I am not really sure what the answer is but I am thinking…c? Or I guess d?

Chemistry
Atom-Particle that cannont be divided in half becasue it is in its smallest form. Reactants-Substances that exist before the reaction begins. Endothermic Reaction-take in, or absorb heat energy. Exothermic Reaction- Release Heat energy Inhibitor-makes a reaction slower. Rate ...

Chemistry
Check my answers 63. What type of bond links the monomers together in a polymer? Poly bond Covalent bond Ionic bond Hydrogen bond*** 64.What is the change in atomic mass when an atom emits a beta particle? decreases by 1*** increases by 1 decreases by 2 remains the same 65. ...

science help PLS
A nuclear power plant produces huge amount of electricity. However, it dumps radioactive wastes into the sea. This has led to an increase in illness among people living along the coast. Which of these is the best method to solve this problem? Increase public awareness to close...

Japan's Nuclear Crisis
How does nuclear fission create energy? Nuclear energy is produced through the splitting, or fission, of a uranium atom in the core of a nuclear reactor. When hit by a neutron, the atom divides and releases two other neutrons, as well as heat and radioactive particles. The ...

Nuclear FIssion
How does nuclear fission create energy? Nuclear energy is produced through the splitting, or fission, of a uranium atom in the core of a nuclear reactor. When hit by a neutron, the atom divides and releases two other neutrons, as well as heat and radioactive particles. The ...

physical edu
Catecholamines are stress hormones which are especially prevalent in Hot Reactors. is it False

Organic chemistry
What is the product formed when phtalic anhydride reactors with D2O/D+? Thank you in advanced!

Science
what device in a nuclear power plant creates nuclear energy?

chemistry 1405
how to write a nuclear equation for the nuclear decay of Ra-226 to an isotope of radon-222

physical science
Which of the following statements is NOT true? A. You are exposed to nuclear radiation every day. B. Most of the nuclear radiation you are exposed to occurs naturally in the environment. C. Naturally occurring nuclear radiation is called background radiation. D. All natural ...

socials
for other event in 1960 i draw nuclear weapons and write beside as caption that many people thought nuclear war amounted to global suicide. or i write instead that Canada accept U.S Bomarc missiles that capable of carrying nuclear warheads and many people not like this ...

Science Energy
My assignment was to give drawn examples of the 7 forms of energy. I am having trouble with Chemical and Nuclear. My science teacher used a plant as an example for chemical energy but I don't know what she meant. Also I can't think of an example for nuclear. Would a nuclear ...

research paper
Does anyone know what arguments could come from nuclear energy? An argument for nuclear energy is that it is more efficient than coal or gas for generating electricity. There are more reasons in favor of it, of course. An argument against it is the question of what do we do ...

science
_____ contain a fuel, rods to control nuclear reactions, and a cooling system. Would Nuclear reactor work??

Chemistry
The most abundant isotope of uranium,238U , does not undergo fission. In a breeder reactor, however, a 238U atom captures a neutron and emits two beta particles to make a fissionable isotope of plutonium, which can then be used as fuel in a nuclear reactor.Write the balanced ...

physics
By considering the nergy time uncertainity principle, estimate the range of the weak nuclear interaction at low energies. compare this range to the size of a typical nucleon for exapme a proton and therefore explain why the weak nuclear interaction between individual nucleaons...

Chemistry
Which of the following statements are true? Fusion reactions result in nuclei with higher Z. To keep a nuclear power plant going, a chain reaction must be maintained. Nuclear fusion produces no long-lived radioactive by-products. The Sun is a nuclear fusion reactor. I tried ...

nuclear chemistry
A typical nuclear reactor produces 1mw of power per day. What is the minimum rate of mass loss required to produce this energy. Don't know where to start

Chemistry
Describe nuclear fission and write a nuclear equation to describe the fission of U-235? Uranium-235 undergoes neutron-Induced fission to produce Xe-144 and Sr-90. Write a nuclear equation for the reaction. How many neutrons are produced?

Chemistry (PLEASE HELP)
Which of the following statements are true? Fusion reactions result in nuclei with higher Z. To keep a nuclear power plant going, a chain reaction must be maintained. Nuclear fusion produces no long-lived radioactive by-products. The Sun is a nuclear fusion reactor. I tried ...

Physics
Nuclear fusion reaction will occur in a gas duetorium hydrogen nuclei when a nuclei has an average kinetic energy of atleast 0.72MeV. What is the temperature required for nuclear fusion to occur with duetorium hydrogen? (take boltmann constant k = 1.38 x 10^23 j/k)

Physics
Nuclear fusion reaction will occur in a gas duetorium hydrogen nuclei when a nuclei has an average kinetic energy of atleast 0.72MeV. What is the temperature required for nuclear fusion to occur with duetorium hydrogen? (take boltmann constant k = 1.38 x 10^23 j/k)

physics
A proton is projected at a stationary 6238 Ni aluminum target. The proton momentarily comes to a halt at a distance from the center of an aluminum nucleus, equal to twice the nuclear radius. Assume that the nucleus retains its spherical shape and that the nuclear force on the ...

soc 207
. The nuclear industry is placing ads in popular magazines and newspapers, claiming that nuclear power is environmentally friendly, since it doesn’t contribute to the greenhouse effect. How do you respond to that claim?

chemistry
name the type of nuclear reaction and name the nuclear symbol that is missing: 27Al13 + ? yields 30P15 + 1n0

nuclear chemistry
Determine the nuclear binding energy for Pd-101. atomic mass of Pd-101=100.908287 g/mol.

physic
In a serious accident, a nuclear power plant's reactor vessel cracks, and all of the cooling water drains out. Although nuclear fission stops, radioactive decay continues to heat

chemistry
Mass is lost or gains in a.) all chemical reactions b.) all nuclear fission reactions c.) all nuclear fusion reactions d.) all chemical and nuclear reactions my guess is B

Chemistry
27. Excess exposure to nuclear radiation can cause harm. All of the following statements about radiation are true EXCEPT A. Radiation can damage living tissue because of the high energy associated with the radiation. B. Radiation can damage biological molecules by knocking an ...

Geography (Ms. Sue)
1). Why were world leaders concerned about the security of nuclear weapons in Russia and the Republics after 1991? A: World leaders were concerned about security of nuclear weapons in Russia and the Republics after 1991 because the Soviet Union, which had once controlled those...

chemistry help!!
For each of the following pairs, indicate which element has the larger first ionization energy Mg or Al. i put Mg. Repulsion of paired electrons in Mg is more significant than Al's higher effective nuclear charge. but got it wrong. Al. Repulsion of paired electrons in Al is ...

chemistry
One way in which atomic nuclear decay takes place?What is the significance of atomic nuclear decay? Analyze the societal implications of using this process.

Biology
I am doing an essay about the nuclear envelope. However, I can't find very good information about the function of this organelle. For example, how does the nuclear envelope protect the nucleus?

U.S. History
1.) What was one effect of the fear of mutually assured destruction during the Cold War? a.) neither Soviets nor the Americans produced large stockpiles of nuclear weapons. b.) Soviets and Americans remained on friendly terms throughout the entire Cold War. c.) The Soviets and...

Chemistry
Discuss in detail, one way in which atomic nuclear decay takes place. What is the significance of atomic nuclear decay? Analyze the societal implications of using this process.

Chemistry
Discuss in detail, one way in which atomic nuclear decay takes place. What is the significance of atomic nuclear decay? Analyze the societal implications of using this process.

chemistry
Discuss in detail, one way in which atomic nuclear decay takes place. What is the significance of atomic nuclear decay? Analyze the societal implications of using this process.

chemistry
Discuss in detail, one way in which atomic nuclear decay takes place. What is the significance of atomic nuclear decay? Analyze the societal implications of using this process.

chemistry
Discuss in detail, one way in which atomic nuclear decay takes place. What is the significance of atomic nuclear decay? Analyze the societal implications of using this process.

u.s.history
Why did the soviet union feel that it was necessary to place nuclear missile in cuba? In what Asian country did the u.s. place nuclear weapons that could fire on western Russia? What waas the significance of the u-2 flight? Why did Kennedy issue a quarantine instead of a ...

college chemistry
Discuss in detail, one way in which atomic nuclear decay takes place. What is the significance of atomic nuclear decay? Analyze the societal implications of using this process.

Chemistry
Arrange the following atoms in order of increasing effective nuclear charge experienced by the electrons in the n = 3 electron shell: K,Mg,P,Rh,and Ti. I think that the effective nuclear charge increases as you go up a group and across a period. so Rh, K, Ti, Mg, P?

Chemistry
Arrange the following atoms in order of increasing effective nuclear charge experienced by the electrons in the n = 3 electron shell: K,Mg,P,Rh,and Ti. I think that the effective nuclear charge increases as you go up a group and across a period. so Rh, K, Ti, Mg, P?

science
What universal force is primarily responsible for keeping satellite in orbit around earth? Answers are electromagnetic force, strong nuclear force, gravitational force, weak nuclear force. Thank you

chemistry
Which of the following statements is true about the nucleus? Only the strong nuclear force holds the nucleus together. The strong nuclear force and the residual strong force hold the nucleus together. The presence of neutrons, the strong nuclear force, and the residual strong ...

physics
what has more predictable behavior, a proton or an electron, and why? a. an electron because of its smaller mass b. a proton because of its larger mass c. an electron because it doesn't feel the nuclear force d. a proton because it doesn't feel the nuclear force e. an electron...

physics
how do types of nuclear radiation differ in electric charge?

History
What defense strategy was developed by the late 1940s because the US lacked sufficient troops to confront the Soviet Army in Eastern Europe? I think that the answer might be= B) nuclear deterrence, is this correct? A) atomic detente B) nuclear deterrence C) a combined NATO ...

Geography (Ms. Sue)
What are the harmful effects of nuclear testing? A: Nuclear testing causes widespread health problems. Such conditions include dangerous levels of radiation exposure which causes dramatic increases in the rates of leukemia, thyroid cancer, birth defects, and metal illness.

physics
if The magnitude of the nuclear spinangular momentum of a nuclei is 15 /2 units. Then what will be the value of I

physics
if The magnitude of the nuclear spinangular momentum of a nuclei is 15 /2 units. Then what will be the value of I

physics
Complete the following nuclear reaction: ^16,v8 O + ^4, v2 He → ________ + ^19, v10 Ne 1p 1n 2H 3H

Prime Minister
If you were Prime Minister Stephen Harper, what position would you take on the issue of nuclear power generation in Canada? I would just stop, and end the nuclear generations. It's better than dealing with risks, and entering the zone of danger. I need help. I don't really get...

chemistry
Describe what happens in a fission reaction. What is a commonly used isotope in a nuclear fission reactor? Describe how a fission nuclear reactor power plant works.

Chemistry-PLEASE HELP!!!
Give a full balanced nuclear equation fro the synthesis of xenon-133. A full balanced nuclear equation includes α particles, β particles, positrons and gamma rays.

nuclear chemistry
determine the nuclear binding energy for Ir-187. Atomic mass of Ir-187=187.958830 g/mol (per nucleon) dE=dmc(^2) mass of proton= 1.00728 amu mass of neutron=1.00866 amu

nuclear chemistry
determine the nuclear binding energy for Ir-187. Atomic mass of Ir-187=187.958830 g/mol (per nucleon) dE=dmc(^2) mass of proton= 1.00728 amu mass of neutron=1.00866 amu

Physical Science
In which of these processes is an element of matter changes into a completely different element.....nuclear fusion, nuclear fission, neither, or both? Please note that we don't do students' homework for them. Once YOU have attempted to come up with a response to each of YOUR ...

college physics
In a nuclear reactor, neutrons released by nuclear fission must be slowed down before they can trigger additional reactions in other nuclei. To see what sort of material is most effective in slowing (or moderating) a neutron, calculate the ratio of a neutron's final kinetic ...

Physics check
The two quantities conserved in all nuclear equations are....... mass and number?

PHYSICS
Give at least one example of an application of each branch: motion properties of materials sound light electricity magnetism properties of atoms nuclear physics Dont understand this.

AP Physics
Two radioactive isotopes are extracted from spent nuclear fuel and placed in a metal container, which is then sealed and deposited in a nuclear waste disposal facility. The graph above shows how many nuclei of isotopes 1 and 2 remain as a function of time. 1) What type of ...

history
i think its rite is it? 13.) . The visit of an influential nuclear physicist to a population symposium in 1979 led to A. the two-child policy in China. B. the election of Deng Xiaoping in China. C. new nuclear-power safety measures in populated areas in China. >>>D. ...

Chemistry
Write a nuclear equation for the following: Iodine 131 undergoes beta decay two times Plutonium 239 is an alpha emitter Th 234 undergoes beta decay once and then alpha decay How do I go about writing nuclear equations?

JAPAN
For what reasons are you in favour of using nuclear energy to generate electricity? What reasons would you be against nuclear power? For the against part--that would be that it's a big step of risk towards human health. For the favourable part--I guess that its just easier to ...

chemistry
Which of the following is NOT true about a nuclear power plant? A. They can explode like a nuclear bomb. B. They produce radioactive waste that must be safely stored for many years. C. They produce fewer carbon emissions than a coal-fired power plant. D. They are a relatively ...

physics
Charge polarization is normally produced by: nuclear interactions. contact. induction. friction. electrostatic means.

physics
Which of these two bodies gets its internal heat from nuclear processes? A) Both.B) Sun.C) Neither.D) Earth.

Physics
This is a very confusing question and I have no idea how to tackle it. - In a nuclear reactor, neutrons released by nuclear fission must be slowed down before they can trigger additional reactions in other nuclei. To see what sort of material is most effective in slowing (or ...

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