Numbers Flashcards
(41 cards)
1
Q
c
A
3e8 m/s
2
Q
kB
A
1.4e-23 J/K
3
Q
1 eV
A
1.6e-19 J
4
Q
N_Avo
A
6e23
5
Q
h
A
6.63e-34 J*s
6
Q
hbar
A
1e-34 J*s
7
Q
G
A
6.67e-11 N*m^2/kg^2
8
Q
e
A
1.6e-19 C
9
Q
m_electron
A
9.11e-31 kg
10
Q
m_proton
A
1.7e-27 kg
11
Q
1 kcal
A
4,200 J
12
Q
1 amu
A
1.7e-27 kg
13
Q
kB*T at room temp
A
1/40 * eV
14
Q
1 inch
A
2.54 cm
15
Q
radius earth
A
6.4e6 m
16
Q
radius moon
A
1.7e6 m
17
Q
radius sun
A
7e8 m
18
Q
Cs hyperfine freq
A
9 GHz
19
Q
Sr clock frequency
A
430 THz
20
Q
eps_0
A
8.9e-12 C^2/N m^2
21
Q
mu_0
A
4 pi e-7 T m/A
22
Q
Stefan Boltzmann Constant
A
5.7e-8 W/m^2K^4
23
Q
b : Wien Displacement constant
A
59 GHz/K
24
Q
H_0 : Hubble constant
A
69.3 (km/s)/Mpc
25
Mpc : Megaparsec
3.1e19 km
26
Bohr radius
.5 angstrom
27
Height of everest
9 km
28
Elevation Duane
1.64 km
29
Circumference earth
40,000 km
30
alpha
1/137
31
mu_B (Bohr magneton)
14 GHz/T
32
Gauss to T
1 G = 0.1 mT
33
mu_N (Nuclear Magneton)
8 MHz/T
34
1 Ry
13.6 eV
35
pi
3.14
36
size nucleus
10 fm
37
speed sound in air
340 m/s
38
density water
1 g/cm^3
39
1 kW*hr in dollars
10 cents
40
air molecule speed room temp
500 m/s
41
energy covalent bond
few eV (6.3 for carbon)
