PETR2311PrerequisitesAnswers(2)

The radius of a borehole decreases linearly with

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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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