New Random Memorization Flashcards
1
Q
Log(phi)
A
0.20899
2
Q
Log(2)
A
0.30103
3
Q
Log(e)
A
0.43429
4
Q
Log(3)
A
0.47712
5
Q
Log(pi)
A
0.49715
6
Q
Log(5)
A
0.69897
7
Q
Log(7)
A
0.8451
8
Q
Log(11)
A
1.04139
9
Q
Log(13)
A
1.11394
10
Q
Log(n!)
A
0.4 + 0.5(log(n)) + n(log(n) - 0.434)
11
Q
Log(Primes below n)
A
-0.363 + log(n) - log(log(n))
12
Q
Log(nth fibonacci number)
A
0.209 * n - 0.209
13
Q
2n choose n
A
4^n/sqrt(n*pi)
14
Q
Gravitational constant
A
6.67e-11 (kms units)
15
Q
Gravitational formula
A
F = G(M1M2)/R2
16
Q
Speed of light
A
3e8 m/s
17
Q
AU
A
1.5e11
18
Q
Light year:
A
9.4e15
19
Q
Parsec
A
3.26 light years
20
Q
Earth to the Moon
A
4e8m
21
Q
Earth radius
A
6e6m
22
Q
Earth mass
A
6e24 kg
23
Q
Earth volume
A
e12 km^3
24
Q
Orbital velocity
A
3e4 m/s
25
of atoms
e50
26
Grains of sand in the world
7.5e18
27
Moon radius
1/4 Earth's radius
28
Moon mass
7.5e22 kg
29
Sun radius
7e8 m
30
Sun mass
2e30kg
31
Sun volume
e18 km^3
32
Milky way length
e5 light years
33
Milky way # of stars
e11
34
Universe # of galaxies
2e12
35
Universe # of stars
2e23
36
Universe # of atoms
e82
37
Mercury radius
1/2 Earth's
38
Venus radius
Earth's
39
Mars radius
1/2 Earth's
40
Jupiter radius
11 Earth's
41
Saturn radius
9.5 Earth's
42
Uranus radius
4 Earth's
43
Neptune radius
4 Earth's
44
Pluto radius
1/5 Earth's
45
BTU
1000 joules
46
Calorie
4 joules
47
Watt
1 joule/sec
48
kWh
3.6e6 joules
49
US energy usage per year
4e12 kWh
50
Avogadro's Number
6e23
51
Angstrom
10e-10 m
52
Proton weight
1.67e-27 kg
53
Electron weight
e-31 kg
54
Quetta
10^30
55
Ronna
10^27
56
Yotta
10^24
57
Zetta
10^21
58
Exa
10^18
59
Peta
10^15
60
Tera
10^12
61
Giga
10^9
62
Mega
10^6
63
Kilo
10^3
64
Hecto
10^2
65
Deka
10^1
66
Deci
10^-1
67
Centi
10^-2
68
Milli
10^-3
69
Micro
10^-6
70
Nano
10^-9
71
Pico
10^-12
72
Femto
10^-15
73
Atto
10^-18
74
Zepto
10^-21
75
Yocto
10^-24
76
Ronto
10^-27
77
Quecto
10^-30
78
Seconds in a year
3e7
79
Seconds in a day
86400
80
Fortnight
14 days
81
Big bang
13.8 billion years ago
82
Earth formation
4.6 billion years ago
83
When humans came
2 million years ago
84
Cells in the body
3.7e13
85
Atoms per cell
100 trillion
86
Heartbeats per day
115000
87
Breaths per day
23000
88
Breath size
0.5 L
89
Fingernail growth
3.47 mm/month
90
Toenail
1.62 mm/month
91
Sneeze length
25 ft
92
Length of all blood vessels
100,00 km
93
Lake huron average depth
59 meters
94
Lake huron maximum depth
229 meters
95
Lake huron volume
3540 cubic kilometers
96
Lake huron surface area
59600 square kilometers
97
Lake Erie average depth
19 meters
98
Lake Erie maximum depth
64 meters
99
Lake Erie Volume
484 cubic kilometers
100
Lake Erie surface area
25700 square kilometers
101
Lake Ontario average depth
86 meters
102
Lake Ontario maximum depth
244 meters
103
Lake Ontario volume
1640 cubic kilometers
104
Lake Ontario Surface area
18960 square kilometers
105
Lake Superior average depth
147 meters
106
Lake Superior maximum depth
406 meters
107
Lake Superior volume
12100 cubic kilometers
108
Lake Superior surface area
82100 square kilometers
109
Lake Michigan average depth
85 meters
110
Lake Michigan maximum depth
281 meters
111
Lake Michigan volume
4918 cubic kilometers
112
Lake Michigan surface area
58000 square kilometers
113
Average ocean depth
4e3 m
114
Maximum ocean depth
1.1e4 m
115
Visible light wavelength
400-700 nm
116
Hectare measurement
10000 m^2
117
Furlong
200 m
118
Blood in body
5 liters
119
Size of a cell
100 μm in diameter
120
Acre
4050 m^2
121
Internet created/uploaded per day
3.288e20 bytes
