2007-01-30 23:16:43 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Weather
this depends very much on where u r.
is this with a view to obtaining geothermal energy?
ah, the old heart! I did a project on alternate forms of energy at uni.
http://www.energyquest.ca.gov/story/chapter11.html
every 100m is approx +3 degrees C
thus about 2.5km would produce the required 75degreesC
http://www.worldenergy.org/wec-geis/publications/reports/ser/geo/geo.asp
2007-01-31 00:44:48 · answer #1 · answered by Anonymous · 0⤊ 0⤋
He will have to dig 2.5 miles down into the earth.
[ 1500 degrees c --> 50 miles
75 degrees C --> 50/1500 * 75 = 2.5 miles
]
2007-01-31 07:45:02 · answer #2 · answered by ? 5 · 0⤊ 0⤋
Depends where you are, in the Sahara about 2 inches.
2007-01-31 07:32:06 · answer #3 · answered by Anonymous · 0⤊ 0⤋
i will stop diging before i get drown in the under water poll formed
by ground water.
2007-01-31 07:22:55 · answer #4 · answered by toploser 5 · 0⤊ 0⤋
2.58 kilometers
2007-01-31 07:43:46 · answer #5 · answered by Doug F 3 · 0⤊ 0⤋