2006-12-08 05:59:11 · 4 answers · asked by coppecoppiloppioppa 2 in Science & Mathematics ➔ Physics
to find this find the volume of the earth,then multiply by the density of water[1gpcm3]=weight in grams
v[volume]X1=m[mass]
v[109,750,950,{15 zeros}]X1=109750950,[15 zeros]grams3
[I may be off by a few decimal places]
2006-12-08 09:56:06 · answer #1 · answered by the professor 2 · 1⤊ 0⤋
The specific gravity of water is 1.000, so one cubic cm of water 'weighs' one gram. A cubic meter is 1000000 cubic cm. So a cubic km is 1000000000000000000 cubic cm.
That amount of water would 'weigh' 1000000000000000000 grams.
The average radius of Earth is 6372.797 km
The formula for the volume of a sphere is 4/3*pi*radius^3
So the volume of Earth is 108357415673 cubic km.
Multiply that number by 1000000000000000000 to get the 'weight' of Earth (if it were made entirely of water).
Feel free to email for clarifications.
2006-12-08 06:12:05 · answer #2 · answered by Bugmän 4 · 1⤊ 0⤋
find the density of water and the volume of the earth and multiply them.
density = mass / volume
then density * volume = mass (weight)
2006-12-08 06:08:35 · answer #3 · answered by themountainviewguy 4 · 1⤊ 0⤋
I'm guessing real freakin' heavy.
2006-12-08 06:06:34 · answer #4 · answered by Anonymous · 1⤊ 1⤋