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Unformatted text preview: adius of a borehole decreases linearly with depth from 8 inches at the surface to 6 inches
at 2000 ft depth. What is the volume of the borehole? 2000 a. V
0 2 z
8
dz in 2 ft
1000 z2 R( z ) 2 dz V
z1
2 This is correct but in funny units of in ft.
See the following handwritten pages for additional equivalent solutions.
b. V 86
2 2 2000 in 2 ft 12
12
8 (8000) 6 (6000) in 2 ft
3
3
This is also correct, the difference in two cones.
d. a and c
e. a and b
f. b and c
e. None of the above
c. V 5. Find the ind...
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 Fall '12
 Dr.Holley

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