College Physics (10th Edition)
10th Edition
ISBN: 9780321902788
Author: Hugh D. Young, Philip W. Adams, Raymond Joseph Chastain
Publisher: PEARSON
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Chapter 30, Problem 41P
(a)
To determine
To show that it is not possible for a single photon to be produced by the collision of one electron and positron with equal opposite speed of less magnitude.
(b)
To determine
To show that if two photons are created by the annihilation of a electron and positron with equal and opposite velocity before collision, the two photons must travel in the opposite direction and their energy is same.
(c)
To determine
The wavelength of the two photons and which part of
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The decay of one type of K-meson is cited as evidence that nature favors matter over antimatter. Since mesons are composed of a quark and an antiquark, is it surprising that they would preferentially decay to one type over another? Is this an asymmetry in nature? Is the predominance of matter over antimatter an asymmetry?
Suppose a W − created in a bubble chamber lives for 5.00×10−25 s. What distance does it move in this time if it is traveling at 0.900 c? Since this distance is too short to make a track, the presence of the W − must be inferred from its decay products. Note that the time is longer than the givenW − lifetime, which can be due to the statistical nature of decay or time dilation.
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)?
2.What is this threshold energy in units of 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?
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Chapter 30 Solutions
College Physics (10th Edition)
Ch. 30 - Prob. 1CQCh. 30 - Prob. 2CQCh. 30 - True or false? During one half-life, the mass of a...Ch. 30 - Changing the temperature of atoms affects their...Ch. 30 - Prob. 5CQCh. 30 - Prob. 6CQCh. 30 - Prob. 7CQCh. 30 - Prob. 8CQCh. 30 - Prob. 9CQCh. 30 - Prob. 10CQ
Ch. 30 - Prob. 11CQCh. 30 - Prob. 12CQCh. 30 - Prob. 3MCPCh. 30 - Prob. 4MCPCh. 30 - Prob. 5MCPCh. 30 - Prob. 6MCPCh. 30 - Prob. 7MCPCh. 30 - Prob. 8MCPCh. 30 - Prob. 9MCPCh. 30 - Prob. 10MCPCh. 30 - Prob. 11MCPCh. 30 - Prob. 12MCPCh. 30 - Prob. 1PCh. 30 - Prob. 2PCh. 30 - Prob. 3PCh. 30 - Prob. 4PCh. 30 - Prob. 5PCh. 30 - Prob. 6PCh. 30 - Prob. 7PCh. 30 - Prob. 8PCh. 30 - Prob. 9PCh. 30 - Prob. 10PCh. 30 - Prob. 11PCh. 30 - Prob. 12PCh. 30 - Prob. 13PCh. 30 - Prob. 14PCh. 30 - Calcium-47 is a emitter with a half-life of 4.5...Ch. 30 - Prob. 16PCh. 30 - Prob. 17PCh. 30 - Prob. 18PCh. 30 - Prob. 19PCh. 30 - Prob. 20PCh. 30 - Prob. 21PCh. 30 - Prob. 22PCh. 30 - Prob. 23PCh. 30 - Prob. 24PCh. 30 - Prob. 25PCh. 30 - Prob. 26PCh. 30 - Prob. 27PCh. 30 - Prob. 28PCh. 30 - Prob. 29PCh. 30 - Prob. 30PCh. 30 - Prob. 31PCh. 30 - Prob. 32PCh. 30 - Prob. 33PCh. 30 - Prob. 34PCh. 30 - Prob. 35PCh. 30 - Prob. 36PCh. 30 - Prob. 37PCh. 30 - Prob. 38PCh. 30 - Prob. 39PCh. 30 - Prob. 40PCh. 30 - Prob. 41PCh. 30 - Prob. 42PCh. 30 - Prob. 43PCh. 30 - Prob. 44PCh. 30 - Prob. 45PCh. 30 - Prob. 46PCh. 30 - Prob. 47PCh. 30 - Prob. 48PCh. 30 - Prob. 49PCh. 30 - The results of activity measurements on a...Ch. 30 - Prob. 51GPCh. 30 - Prob. 52GPCh. 30 - Prob. 53GPCh. 30 - Prob. 54GPCh. 30 - Prob. 55GPCh. 30 - Prob. 56GPCh. 30 - Prob. 57GPCh. 30 - Prob. 58GPCh. 30 - Prob. 59GPCh. 30 - The atomic mass of 2056Co is 55.934939 u, and the...Ch. 30 - Prob. 61GPCh. 30 - Prob. 62GPCh. 30 - Prob. 63GPCh. 30 - Prob. 64PPCh. 30 - Prob. 65PPCh. 30 - Prob. 66PPCh. 30 - Prob. 67PPCh. 30 - Prob. 68PPCh. 30 - Prob. 69PPCh. 30 - Prob. 70PPCh. 30 - Prob. 71PP
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- When an electron and positron collide at the SLAC facility, they each have 50.0 GeV kinetic energies. What is the total collision energy available, taking into account the annihilation energy? Note that the annihilation energy is insignificant, because the electrons are highly relativistic.arrow_forwardA sphere of matter and a sphere of antimatter (both at rest) can annihilate releasing 0.9· 1030 MeV of energy. Given that both spheres have the same mass, what is the mass in kg of each sphere?arrow_forwardWhat is the energy of each photon produced by positron– electron annihilation? (a) 1/2 mev2 , where v is the speed of the emitted positron; (b) mev2 ; (c) 1/2 mec2 ; (d) mec2 .arrow_forward
- A K⁻ meson has a rest lifetime of 1.24 x 10⁻⁸ s. If one of these particles is created in a particle collider at speeds of 0.9992c, how long will researchers see it exist from their frame of reference?arrow_forwardMore 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. 1. What is the threshold antineutrino energy for the Glashow resonance in peta electronvolts (PeV)? 2. What is this threshold energy in units of 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?arrow_forwardShow that all combinations of a quark and an antiquark produce only integral charges. Thus mesons must have integral charge.arrow_forward
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