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MMLU-Pro / 9066 / A newly discovered planet has twice the density of the earth, but the…

Problem

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

question

A newly discovered planet has twice the density of the earth, but the acceleration due to gravity on its surface is exactly the same as on the surface of the earth. What is its radius?

category

physics

options

  1. 2.84 × 10^6 meters
  2. 3.19 × 10^6 meters
  3. 5.12 × 10^6 meters
  4. 9.00 × 10^6 meters
  5. 6.38 × 10^6 meters
  6. 8.34 × 10^6 meters
  7. 2.00 × 10^6 meters
  8. 7.56 × 10^6 meters
  9. 4.77 × 10^6 meters
  10. 1.59 × 10^6 meters

src

stemez-Physics

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Source and history

Official source

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