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Define equation variables
NA - Avogadro’s number
t - time [s]
lambda - mean free path [m, in]
R - universal gas constant [8.314, 1.986]
T - temperature [K, Rankine]
mu - dynamic viscosity [Pa/s, lb/ft*s]
rp - particle radius [m, in]
Define equation variables
R - radius of nucleus [m, in]
A - atomic mass number
Define equation variables
rho(r) - density of nucleus at distance r from the center [kg/mÂł, lb/ftÂł]
rhop - density at nucleus center [kg/mÂł, lb/ftÂł]
r - distance from center of nucleus [m, in]
R - radius of nucleus at which density drops off [m, in]
a - diffussness parameter
Define equation variables
Fe - electric force
k - 8.9875Ă—10^9 N
q1 - charge 1 [C]
q2 - charge 2 [C]
r - separation distance [m,
Define equation variables
b - impact parameter [m, in]
k - 8.9875Ă—10^9 N
Z - atomic number
e - 1.602Ă—10^-19 C
KEalpha - kinetic energy of alpha particle [J, ft lb]
theta - scattering angle
Define equation variables
me - mass of electron [kg, slug]
ve - velocity of electron [m/s, ft/s]
rn - radius of orbit of electron at energy level n [m, in]
n - energy level quantum number
h - 6.626Ă—10^-34 Js
Define equation variables
rn - radius of orbit of electron at energy level n [m, in]
n - energy level quantum number
h - 6.626Ă—10^-34 Js
k - 8.9875×10^9 Nm²/C²
e - 1.602Ă—10^-19 C
me - mass of electron [kg, slug]
a0 - bohr radius (radius of electron at n=1) [m, in]
Define equation variables
En - energy of an electron in orbit n [J, ftlb]
k - 8.9875×10^9 Nm²/C²
e - 1.602Ă—10^-19 C
a0 - bohr radius of hydrogen (radius of electron at n=1) [m, in]
n - energy level quantum number
Define equation variables
Egamma - energy of photon [J, eV]
ER - Rydberg energy constant
m - lower energy level quantum number (final state)
n - higher energy level quantum number (initial state)
Define equation variables
Egamma - energy of photon [J, eV]
ER - Rydberg energy constant
Z - atomic mass number
n - energy level quantum number
Define equation variables
Ee - energy of emitted electron
h - 6.626Ă—10^-34 Js
mu - frequency of incoming photon [Hz]
IP - ionization potential [J, eV]
Define equation variables
A - atomic mass number
Z - protons
Define equation variables
Z - protons
A - atomic mass number
Definition
magic numbers
Define equation variables
lambdadB - deBroglie wavelength [m, ft, in]
h - 6.626Ă—10^-34 Js
p - momentum [kgm/s, slugft/s]
Define equation variables
pgamma - photon momentum [kgm/s, slugft/s]
Egamma - photon energy [J, eV]
c - 2.99Ă—10^8 m/s
Define equation variables
p - momentum [kgm/s, slugft/s]
m - mass [kg, lb]
v - velocity [m/s, ft/s]
Define equation variables
lambdagamma - photon wavelength [m, ft]
h - 6.626Ă—10^-34 Js
c - 2.99Ă—10^8 m/s
Egamma - photon energy [J, eV]
Define equation variables
lambda - wavelength [m, ft]
h - 6.626Ă—10^-34 Js
c - 2.99Ă—10^8 m/s
Et - total energy of system/particle [J, eV]
Eo - rest energy of system/particle [J, eV]
Define equation variables
lambda - wavelength of incident wave [m, ft, in]
d - distance between planes in crystal lattice [m, ft, in]
theta - angle of incidence
Define equation variables
E - total energy of particle [J, eV]
U(x) - potential energy of particle as a function of position
psi(x) - wave function of particle as a function of position
h - 6.626Ă—10^-34 Js
m - mass of particle [kg, slug]
Define equation variables
psi - wave function
A - amplitude constant of wave function
alpha - decay rate constant [m^-1, ft^-1]
x - position [m, ft]
Define equation variables
alpha - decay rate constant [m^-1, ft^-1]
malpha - mass of alpha particle [kg, slug]
U - potential energy of particle [J, eV]
E - total energy of particle [J, eV]7
h - 6.626Ă—10^-34 Js
Define equation variables
freq - frequency [Hz]
v - velocity [m/s, ft/s]
r - radius [m, ft]
Define equation variables
lambda - average rat of occurrence [occurance per second]
freq - frequency of events
Prob - probability of event
Define equation variables
T1/2 - half life [s]
Z - atomic mass number
q - charge of emitted particle [C]
Note 
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