Fundamentals of Physics, Volume 1, Chapter 1-20
10th Edition
ISBN: 9781118233764
Author: David Halliday
Publisher: WILEY
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Chapter 44, Problem 3P
To determine
To calculate:
the wavelength of each pair of γ-rays produced, when a pair of e- – e+ get annihilated at rest.
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3
3
Consider the nuclear reactionH
4
1
H+H- He + 2,n. The known atomic masses are
4
, He: 4.002603 u
3
H: 3.016049u
1
1
o n:
1.008665 u
What is the energy released in this nuclear reaction? (1 u = 931.5 MeV/c2)
O -15.6 MeV
O 0.065 MeV
-0.0122 MeV
O 11.3 MeV
Suppose that a muon neutrino and a muon antineutrino, both of which are just barely moving, encounter each other in space and
completely annihilate to form two photons of equal energy.
In view of the uncertainty about the mass of the muon
neutrino (< 0.180 MeV/c²), what is the shortest wavelength
Ao of light that could be emitted by the annihilation?
Would the light be visible to the human eye?
yes
O no
λο
=
m
Question B1
a) A nuclear power station delivers 1 GW of electricity for a year from uranium fission. Given
that a single fission event delivers about 200 MeV of heat, estimate the number of atoms
that underwent fission, their mass, and the loss of mass of the fuel elements.
b) Uranium 238 has a half-life of about 4.5 billion years. All the 238U now on Earth was created
in stars and has been here since the formation of Earth about 4.5 billion years ago. Consider
a kilogram of pure 238 U present at the formation of the Earth.
i) Calculate the activity of the kilogram at that time. Sketch a graph of the activity of the
uranium since then to the present day. Label the axes with appropriate numbers and
units. Mark on your graph the half-life and the characteristic decay time.
ii) 238 U decays through a chain of thirteen very short-lived radionuclides (longest half-
live only 1600 years) before reaching a stable isotope of lead. If what remains of this
uranium has for the last few million…
Chapter 44 Solutions
Fundamentals of Physics, Volume 1, Chapter 1-20
Ch. 44 - Prob. 1QCh. 44 - Prob. 2QCh. 44 - Prob. 3QCh. 44 - Prob. 4QCh. 44 - Prob. 5QCh. 44 - Prob. 6QCh. 44 - Prob. 7QCh. 44 - Prob. 8QCh. 44 - Prob. 9QCh. 44 - Prob. 10Q
Ch. 44 - Prob. 11QCh. 44 - Prob. 1PCh. 44 - Prob. 2PCh. 44 - Prob. 3PCh. 44 - Prob. 4PCh. 44 - Prob. 5PCh. 44 - a A stationary particle 1 decays into parties 2...Ch. 44 - Prob. 7PCh. 44 - GO A positive tau , rest energy = 1777 MeV is...Ch. 44 - Prob. 9PCh. 44 - Prob. 10PCh. 44 - Prob. 11PCh. 44 - Prob. 12PCh. 44 - Prob. 13PCh. 44 - Prob. 14PCh. 44 - Prob. 15PCh. 44 - Prob. 16PCh. 44 - Prob. 17PCh. 44 - Prob. 18PCh. 44 - Prob. 19PCh. 44 - Prob. 20PCh. 44 - Prob. 21PCh. 44 - Prob. 22PCh. 44 - Prob. 23PCh. 44 - Prob. 24PCh. 44 - Prob. 25PCh. 44 - Prob. 26PCh. 44 - Prob. 27PCh. 44 - Prob. 28PCh. 44 - Prob. 29PCh. 44 - Prob. 30PCh. 44 - Prob. 31PCh. 44 - Prob. 32PCh. 44 - Prob. 33PCh. 44 - Prob. 34PCh. 44 - Prob. 35PCh. 44 - What would the mass of the Sun have to be if Pluto...Ch. 44 - Prob. 37PCh. 44 - Use Wiens law see Problem 37 to answer the...Ch. 44 - Prob. 39PCh. 44 - Prob. 40PCh. 44 - Prob. 41PCh. 44 - Due to the presence everywhere of the cosmic...Ch. 44 - SSM Suppose that the radius of the Sun were...Ch. 44 - Prob. 44PCh. 44 - Prob. 45PCh. 44 - Prob. 46PCh. 44 - Prob. 47PCh. 44 - Prob. 48PCh. 44 - Prob. 49PCh. 44 - Prob. 50PCh. 44 - Prob. 51PCh. 44 - Prob. 52PCh. 44 - Prob. 53PCh. 44 - Prob. 54P
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