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MMLU-Pro / 11724 / A flat plate 1.5 ft long and 5 ft wide is placed in a stream of water flowing at…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

A flat plate 1.5 ft long and 5 ft wide is placed in a stream of water flowing at a velocity of 45 ft/s, such that the flow of water is parallel to the 1.5 ft. side of the plate. Calculate: a) the boundary layer thickness at the trailing edge. b) the drag force acting on the plate if the laminar boundary layer region ends at Re = 5 × 10^5. c) the drag force acting on the plate for turbulent smooth-wall flow from the leading edge. d) the drag force acting on the plate for turbulent rough-wall flow. The surface roughness of the plate is \epsilon = 0.00035 ft.

category

engineering

options

  1. a) 0.022 ft, b) 84 lb_f, c) 93 lb_f, d) 165 lb_f
  2. a) 0.0257 ft, b) 89.56 lb_f, c) 97.1 lb_f, d) 173.7 lb_f
  3. a) 0.028 ft, b) 92 lb_f, c) 102 lb_f, d) 178 lb_f
  4. a) 0.03 ft, b) 88 lb_f, c) 95 lb_f, d) 170 lb_f
  5. a) 0.0265 ft, b) 87 lb_f, c) 96 lb_f, d) 172 lb_f
  6. a) 0.029 ft, b) 86 lb_f, c) 101 lb_f, d) 168 lb_f
  7. a) 0.027 ft, b) 90 lb_f, c) 100 lb_f, d) 175 lb_f
  8. a) 0.025 ft, b) 85 lb_f, c) 98 lb_f, d) 180 lb_f
  9. a) 0.032 ft, b) 91 lb_f, c) 99 lb_f, d) 165 lb_f
  10. a) 0.03 ft, b) 83 lb_f, c) 94 lb_f, d) 160 lb_f

src

stemez-TransportPhenomena

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Source and history

upstream_id / Original problem ID
11724
task_id
034199d7-4de4-5499-872b-f4be58b33f16
task_key
default--test--11724
task_revision_id
1
config / split
default / test

Official source

initial import