EP PHYSICS F/SCI.+ENG.W/MOD..-MOD.MAST.
5th Edition
ISBN: 9780134402635
Author: GIANCOLI
Publisher: PEARSON CO
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Chapter 43, Problem 15P
To determine
The amount of energy that is released when a
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K:43)
Assuming only maximum energy transfers occur for 12C ions with electrons in a material, determine the number of collisions required for a 100 MeV 12C ion to go to energy below 10 MeV.
3-
3
5) Be (I*=), initially at rest, captures K electrons and decays either to the ground state (I =
2
2
or the 0.478 MeV first excited state (I 7=
) of Li.
(i) Sketch the decay scheme.
(ii) Estimate the kinetic energy of the neutrino emitted in each case, ignore the kinetic energy of Li.
(iii) Identify the permitted multiples for the gamma transition in Li .
(iv) If the above transition has a conversion coefficient 1.0, use Weisskopf estimates to calculate a
theoretical lifetime for the excited state.
1
Chapter 43 Solutions
EP PHYSICS F/SCI.+ENG.W/MOD..-MOD.MAST.
Ch. 43 - Prob. 1QCh. 43 - If a proton is moving at very high speed, so that...Ch. 43 - Prob. 3QCh. 43 - Prob. 4QCh. 43 - Prob. 5QCh. 43 - Prob. 6QCh. 43 - Prob. 7QCh. 43 - Prob. 8QCh. 43 - Prob. 9QCh. 43 - Prob. 10Q
Ch. 43 - Prob. 11QCh. 43 - Prob. 12QCh. 43 - Prob. 13QCh. 43 - Prob. 14QCh. 43 - Prob. 15QCh. 43 - Prob. 16QCh. 43 - Prob. 17QCh. 43 - Prob. 18QCh. 43 - Prob. 19QCh. 43 - Prob. 20QCh. 43 - Prob. 6PCh. 43 - Prob. 7PCh. 43 - Prob. 14PCh. 43 - Prob. 15PCh. 43 - Prob. 16PCh. 43 - Prob. 17PCh. 43 - Prob. 18PCh. 43 - Prob. 19PCh. 43 - Prob. 20PCh. 43 - Prob. 21PCh. 43 - Prob. 27PCh. 43 - Prob. 28PCh. 43 - Prob. 32PCh. 43 - Prob. 50GPCh. 43 - Prob. 51GPCh. 43 - Prob. 52GPCh. 43 - Prob. 53GPCh. 43 - Prob. 57GPCh. 43 - Prob. 58GPCh. 43 - Prob. 59GPCh. 43 - Prob. 60GPCh. 43 - Prob. 61GP
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- (a) Write the complete a decay equation for 226Ra. (b) Find the energy released in the decay.arrow_forward1. The figure below shows the decay of 7ªA:³³ (1*)=2', tı2= 17.78 days) which branches to the ground state and first excited state of both 7ªGe³² and 74SE³“. The decay to 74G¢² proceeds to the exited state (0.596 MeV, I* =2*) by EC (34%) and (B* 26%), 'and to the ground state (1* =0*) by ß* (8%). The decay to 74S-³ª is through ß' emission 17% to the ground state (1* =0*) and 15% to the excited state (0.635 MeV, 1* =2*). a. Explain why the emission of the neutrino in electron capture in the above decay removes difficulties with conservation of angular momentum. b. Calculate the end-point (maximum) energies of ß* and ß in these decays. c. Calculate the recoil energy of 74G¢3² on the emission of the neutrino in the electron capture decay. d. Classify the B and ß* decays according to the degree of forbiddness. e. Use the plot of f-function versus the end-point energy of beta particles to estimate the ratio of the matrix elements of the interactions leading to the B* and B- decays to the(2*…arrow_forwardDuring nuclear decay a^238 U atom can break apart into a helium -4 atom and one other atomAssuming that no subatomic particles are destroyed during this decay process, what the other element produced ?arrow_forward
- (ii) Explain in detail two Heisenberg uncertainty principles. Apply Uncertainty principle to estimate the kinetic energy (in MeV) of a nucleon bound within a nucleus of radius 10-15 m.arrow_forward125 The 2 has been produced in the reaction K + p → Kº + K+ + S¯ What is the minimum momentum of the K in the Laboratory for this reac- tion to proceed assuming that the target proton is at rest in the laboratory? Assume that a 2 is produced in the above reaction with this momentum of K. What is the probability that will travel 3 cm in the Lab before interacting. The rest decaying? You may ignore any likelihood of the energies of K+, K¯, Kº, P, S¯ are 494, 494, 498, 938, 1,675 MeV, respec- tively. Lifetime of S2 = 1.3 × 10-1⁰ s. [University of Bristol 1967]arrow_forwardFigure 2 shows the decay of a Ra atom in a solid. Calculate the energy partition between the daughter product and of the a particle. 226 Ra 88 a 4.47 MeV 5.6% a 4.60 MeV 94.3% 222 Ey 0.2 MeV Rn 86 Figure 2. Decay of radium-226.arrow_forward
- 1arrow_forward15 Which conservation law is violated in each of these proposed re- actions and decays? (Assume that the products have zero orbital an- gular momentum.) (a) A°p+ K:(b)n + (S = -3,q = -1,m = 1672 MeVlc?, and m, = for 2-):(c) K +p A°+ 7". %3!arrow_forwardThe data is represented by: y = y0 e–k x What is the value of the decay constant k? Question 11 options: k = 0.25 k = 0.5 k = 2 What value of y corresponds to x = 7.00? Question 12 options: 55 59 66arrow_forward
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