Let us say you are standing 25 meters from a radioactive source and are exposed to 120mrem/hr of gamma radiation, if you move back 15 meters and place 4 inches of lead between you and the source, what i your new exposer?

Q: Explain the difference between nuclear fission and nuclear fusion?

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Q: Consider the nuclei Sn with an atomic number of 50 and mass number is 118 . Determine its mass…

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Q: A 1.13-cm panel of a certain material can absorb 86.5% of incoming rays from a radioactive source.…

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Q: If we split a nucleus into two smaller nuclei, with a release of energy, has the average binding…

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Q: What is an alpha particle the same as?

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Q: Consider an initial amount of 708g of radioactive material with half-life h=3.2hdays. Use a…

A: Write the expression of radioactive degradation. N=N0e-t/t1/2

Q: If 3.92 half-lives have occurred, what amount of radio-active material would be left if you began…

A: The radioactivity formula is  N = No12n where, No is the initial amount, n is the number of half…

Q: Which process would release energy from gold, fission or fusion? Which would release energy from…

A: From gold, fission would release energy. From carbon, fusion would release energy.

Q: How do the four types of nuclear radiation differ?

A: There are four major types of radiation 1) Alpha rays 2) Beta rays 3) Neutrons 4) Electromagnetic…

Q: how many beta particles are released when 197 82 transmutes to 197 79 Au

A: Reaction: Au19782→Au79197+3e-+3ve

Q: H + H → He +_+ energy Here is one of the most promising reactions in fusion. Complete the missing…

A: Option a is the right answer  0n1

Q: Why is there, unlike fission fuel, no limit to the amount of fusion fuel that can be safely stored…

A: Unlike fission fuel, no limit to the amount of fusion fuel that can be safely stored in one…

Q: How are beta emissions and electron capture useful in making atoms more stable?

A: In nuclear decay reactions (or radioactive decay), the parent nucleus is transformed into a more…

Q: are radioactivity and radioactive decay the same concepts?

A: Radioactivity is the process by which an unstable  atomic nucleus loses energy by emitting…

Q: Why is nuclear fission usually followed by B-decay?

A: Nuclear fission is a reaction in which the nucleus of an atom fragmented into two or more smaller…

Q: How is Nuclear fission reaction different from Nuclear fusion?

A: Nuclear fission is splitting of the single nucleus into more than one nucleus.   Nuclear fusion is…

Q: State one reason why methods other than alpha particle scattering are used to determine nuclear…

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Q: Why will nuclear fission probably not be used directly for powering automobiles? How could it be…

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Q: Find the energy released in the fusion reaction

A: The masses for given elements are,

Q: In considering potential fusion reactions, what is the advantage of the reaction 2H + 3H → 4 He + n…

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Q: Which will leak more neutrons, two separate pieces of uranium or the same pieces stuck together?

A: The uranium atom give neutrons during fission.

Q: Suppose you start with 1 kilogram of a radioactivesubstance that has a half-life of 7 years. How…

A: Radioactive decay is represented by,

Q: At 6:00 AM a hospital uses its cyclotron to make 1 milligram of the isotope fluorine-18 for use as a…

A: The initial value of isotope fluorine -18  is N0 = 1 mg. The half-life of F-18 is 1.8 hr. F-18 left…

Q: A passenger on an airplane flying across the Atlantic receives an extra radiation dose of about 5μSv…

A: The average yearly radiation dose of a person is 3mSv. It is due to due to the natural background…

Q: Which type of radioact O Beta None of the above O Gamma O Alpha

A: Answer  The correct option is (c) ie gamma rays .

Q: Find the energy released in the fusion reaction {H + {H {H + }H

A: The energy released for the fusion reaction is,

Q: Explain Gamma decay?

A: A Parent nucleus decays to its daughter nucleus so as to gain stability. The main reason behind the…

Q: The mass-energy equivalence equation is E = mc2. Explain how the equation shows nuclear activities…

A: The equation that relates energy with mass is given. We need to show that in nuclear activities a…

Q: Which type of radiation—alpha, beta, or gamma—predominates within an enclosed elevator descending…

A: Alpha, beta and gamma radiations

Q: B Lead 1 Radioactive source 3 2.

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Q: Why is a chain reaction more likely in a big piece of uranium than it is in a small piece?

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Q: If 1.99 half-lives have occurred, what amount of radio-active material would be left if you began…

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Proper Length

The theory of special relativity explains the connection between space and time to objects that move in a straight line at a constant speed. The objects move at the speed of light. When an object approaches light speed, its mass is endless and cannot move faster than light. The most crucial postulate of Einstein's special relativity is that the laws of nature do not change in each frame of reference.