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MMLU-Pro / 9511 / To what tension must a brass wire of cross-sectional area 10^…

Problem

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question

To what tension must a brass wire of cross-sectional area 10^\rule{1em}{1pt}2 cm^2 be subjected so that the speed of longitudinal and transverse waves along it may be the same? Young's modulus for brass is 9.1 x 10^11 dynes\textbulletcm^\rule{1em}{1pt}2. Is this situation physically realizable?

category

physics

options

  1. Depends on the frequency of the waves
  2. Depends on the material
  3. Depends on the tension applied
  4. Depends on the length of the wire
  5. Depends on the temperature of the wire
  6. Realizable if the wire is alloyed with another metal
  7. Only realizable in a vacuum
  8. Physically realizable
  9. Physically unrealizable
  10. Realizable at a specific tension that matches the speed of sound in brass

src

stemez-Physics

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Source and history

upstream_id / Original problem ID
9511
task_id
8a75dc34-1cb3-5b67-88eb-df04b3596565
task_key
default--test--9511
task_revision_id
1
config / split
default / test

Official source

initial import