BIG NUMBERS Flashcards
don't fucking forget these
1
Q
Equatorial radius
A
6378 km
2
Q
Polar radius
A
6357 km
3
Q
Radius of sphere with Earth’s volume
A
6371 km
4
Q
Volume (Earth)
A
1.083 * 10^12 km^3
5
Q
Surface area (Earth)
A
5.1 * 10^8 m^2
6
Q
Percent surface area of oceans
A
71%
7
Q
Percent surface area of land
A
29%
8
Q
Average elevation of land
A
623 meters
9
Q
Average depth of oceans
A
3600 m (3.6 km)
10
Q
Total mass of Earth
A
5.976 * 10^24 kg
11
Q
Mean density of Earth
A
5.517 g/cm^3
12
Q
Gravity at equator
A
9.78 m/s^2
13
Q
Mass of atmosphere
A
5.1*10^18 kg
14
Q
Mass of ice
A
25 to 30 * 10^18 kg
15
Q
Mass of oceans
A
1.4 * 10^21 kg
16
Q
Mass of crust
A
2.5 * 10^22 kg
17
Q
Mass of mantle
A
4.05 * 10^24 kg
18
Q
Mass of core
A
1.90 * 10^24 kg
19
Q
Continental crust thickness
A
40 km
20
Q
Oceanic crust thickness
A
6 km
21
Q
Earthquake depth (continental)
A
2-20 km
22
Q
Earthquake depth (oceanic)
A
300-700 km
