Chapter 43 - 43.79

79.

(a) Molybdenum beta decays into Technetium:

99
42

→

99
43

Tc + e

−

+ ν

(b) Each decay corresponds to a photon produced when the Technetium nucleus de-excites [note that

the de-excitation half-life is much less than the beta decay half-life]. Thus, the gamma rate is the
same as the decay rate: 8.2

× 10

/s.

N =

1/2

ln 2

(38/s)(6.0 h)(3600 s/h)

ln 2

= 1.2

× 10

Document Outline

Main Menu

Chapter 1 Measurement

Chapter 2 Motion Along a Straight Line

Chapter 3 Vectors

Chapter 4 Motion in Two and Three Dimensions

Chapter 5 Force and Motion I

Chapter 6 Force and Motion II

Chapter 7 Kinetic Energy and Work

Chapter 8 Potential Energy and Conservation of Energy

Chapter 9 Systems of Particles

Chapter 10 Collisions

Chapter 11 Rotation

Chapter 12 Rolling, Torque, and Angular Momentum

Chapter 13 Equilibrium and Elasticity

Chapter 14 Gravitation

Chapter 15 Fluids

Chapter 16 Oscillations

Chapter 17 Waves—I

Chapter 18 Waves—II

Chapter 19 Temperature, Heat, and the First Law of Thermodynamics

Chapter 20 The Kinetic Theory of Gases

Chapter 21 Entropy and the Second Law of Thermodynamics

Chapter 22 Electric Charge

Chapter 23 Electric Fields

Chapter 24 Gauss’ Law

Chapter 25 Electric Potential

Chapter 26 Capacitance

Chapter 27 Current and Resistance

Chapter 28 Circuits

Chapter 29 Magnetic Fields

Chapter 30 Magnetic Fields Due to Currents

Chapter 31 Induction and Inductance

Chapter 32 Magnetism of Matter: Maxwell’s Equation

Chapter 33 Electromagnetic Oscillations and Alternating Current

Chapter 34 Electromagnetic Waves

Chapter 35 Images

Chapter 36 Interference

Chapter 37 Diffraction

Chapter 38 Special Theory of Relativity

Chapter 39 Photons and Matter Waves

Chapter 40 More About Matter Waves

Chapter 41 All About Atoms

Chapter 42 Conduction of Electricity in Solids

Chapter 43 Nuclear Physics

43.1 - 43.10
- 43.1
- 43.2
- 43.3
- 43.4
- 43.5
- 43.6
- 43.7
- 43.8
- 43.9
- 43.10
43.11 - 43.20
- 43.11
- 43.12
- 43.13
- 43.14
- 43.15
- 43.16
- 43.17
- 43.18
- 43.19
- 43.20
43.21 - 43.30
- 43.21
- 43.22
- 43.23
- 43.24
- 43.25
- 43.26
- 43.27
- 43.28
- 43.29
- 43.30
43.31 - 43.40
- 43.31
- 43.32
- 43.33
- 43.34
- 43.35
- 43.36
- 43.37
- 43.38
- 43.39
- 43.40
43.41 - 43.50
- 43.41
- 43.42
- 43.43
- 43.44
- 43.45
- 43.46
- 43.47
- 43.48
- 43.49
- 43.50
43.51 - 43.60
- 43.51
- 43.52
- 43.53
- 43.54
- 43.55
- 43.56
- 43.57
- 43.58
- 43.59
- 43.60
43.61 - 43.70
- 43.61
- 43.62
- 43.63
- 43.64
- 43.65
- 43.66
- 43.67
- 43.68
- 43.69
- 43.70
43.71 - 43.80
- 43.71
- 43.72
- 43.73
- 43.74
- 43.75
- 43.76
- 43.77
- 43.78
- 43.79
- 43.80
43.81 - 43.88
- 43.81
- 43.82
- 43.83
- 43.84
- 43.85
- 43.86
- 43.87
- 43.88

Chapter 44 Energy from the Nucleus

Chapter 45 Quarks, Leptons, and the Big Bang