Choose the correct answer:1. Lepton number is :a) Violated in strong interactionsb) Violated in weak interactionsc) Conserved for all forcesD) Conserved only in electromagnetic interaction2. Within the Standard Model a generation is composed of:a) Two leptons and two quarksb) Two quarks (q,q')c) Two leptons (1,v)D) Two leptons and one gauge boson3. Which of the four fundamental ?forces has the shortest range:A) Electromagnetism.b) Gravityc) weak.D) strong4. Up quark is the third lightest of all quarks :A) True.B) False5. Quark an elementary particle and fundamental constituent of matter. that Is a substructure of hadrons :A) True.B) false

As per guidelines only 3 subparts are solved here. 1. Letpton number 2. Composition of generation…

1. Lepton number is : a) Violated in strong interactions b) Violated in weak interactions c) Conserved for all forces D) Conserved only in electromagnetic interaction 2. Within the Standard Model a generation is composed of : a) Two leptons and two quarks

1. Lepton number is : a) Violated in strong interactions b) Violated in weak interactions c) Conserved for all forces D) Conserved only in electromagnetic interaction 2. Within the Standard Model a generation is composed of : a) Two leptons and two quarks

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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9. Compare the electron, proton, and neutron a) in terms of mass, b) in terms of charge. c) Which of these particles are leptons and which are baryons. Application Questions 10. Use the table of Fundamental Particles and Interactions to answer the following a. What is the unified theory of the weak and electromagnetic interaction called? b. What particles experience the strong force? c. What particles mediate the weak interaction? Which of these is the most massive? 11. For the isotope "Sr find the following: i) the name of the element; ii) the atomic number; iii) the number of protons in the nucleus; iv) the number of electrons in an atom; v) the number of neutrons in the nucleus. 12. For the isotope 14C find the following: i) the name of the element; ii) the atomic number; iii) the number of protons in the nucleus; iv) the number of electrons in an atom; v) the number of neutrons in the nucleus. 13. If the isotope promethium-145 undergoes an alpha decay, find the resulting product.…
3. Given the Heisenberg uncertainty principle, is it possible to create particle- antiparticles pairs that exists for extremely shot periods of time before annihilating? Does this mean that empty space is really empty?
I need the answer as soon as possible
Discuss the quark model and explain how mesons and baryons are formed using quarks
1 Because of their short lifetimes, very few muons that are produced in the upper atmosphere at high speeds should be observed at the surface of the earth. Yet we detect large numbers of muons at ground level because of A) time dilation B) length contraction C)the equivalence of mass and energy D)principle of relativity E)none of the other choices 2 Which of the following is not a fundamental force in nature? A) mass energy interaction B) strong interaction C) weak interaction D) electromagnetic interaction E) gravitational interaction 3 These particles possess half-integral spins and obey Pauli exclusion principles A )fermions B) boson C) muon D)hadron E)photon
Answer the question number 2
Two protons experience a head-on collision moving with velocity v. In order for there to be enough energy to create a new proton- antiproton pair, the velocity of each proton must equal? A) 2c B) 0.866c .914c D) 1.414c
Physics solve all part please. More than 60 years ago, future Nobel laureate Sheldon Glashow predicted that if an antineutrino — the antimatter answer to the nearly massless neutrino — collided with an electron, it could produce a cascade of other particles. The Glashow resonance phenomenon is hard to detect, in large part because the antineutrino needs about 1,000 times more energy than what's produced in the most powerful colliders on Earth. Let's compare this event to an ordinary baseball with a mass of 146 g. Please use three significant figures in your calculations. 1. What is the threshold antineutrino energy for the Glashow resonance in peta electronvolts (PeV)? Answer 6.3 2. What is this threshold energy in units of joules? Answer 0.001 Joules 3. Now consider a baseball with the same kinetic energy as that of the Glashow resonance. What speed in m/s would correspond to this energy? 4. What is this rate in units of inches/second?
The reaction below describes an antiquark decaying into other particles. The X represents an unknown particle. d → ū + e + X a. What must be the charge of X? b. What must be the baryon number of X? c. What must be the lepton number of X? d. What is particle X?
5. Pion beams (*) are used to treat cancer in radiation therapy. The energy comes from the decay of the pions. Negative pions usually decay into a muon and a muon antineutrino. (a) (b) Write out the complete decay of a л into stable particles. How much energy is released from a complete decay? Assume the neutrino masses are negligible. (c) How many pions need to decay to give a dose of 50.0 Gy to 10.0 grams of tissue?
2. Draw a Feynman diagram for each of the following reactions, provided it is allowed. If the reaction is forbidden explain why. μ → eveVμ τ' →μνμύτ Vμе- → Veft- Vμe+ → Vel+ Vμe+ → Vef+ Vμnμp VμP →μ+n eté → VμVμ ete- →T+T- e¯e → ee
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