Numbers to know Flashcards
1
Q
Age of Solar System
A
4.5 Byrs
2
Q
The earth looks similar to how it was _ years ago
A
1M
3
Q
The moon looks similar to how it was _ years ago
A
1B
4
Q
Water/Ice density
A
1g/cm^3
5
Q
Rock density
A
3g/cm^3
6
Q
Iron density
A
8g/cm^3
7
Q
Moment of inertia of a uniform sphere
A
0.4
8
Q
Moment of inertia of a sphere with massive core
A
<0.4
9
Q
Albedo of notebook paper
A
0.6
10
Q
Albedo of asphalt
A
0.1
11
Q
Ratio of crater width to depth of deepest rocks (at the rim)
A
1/10
