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MMLU-Pro / 9698 / A clock is controlled by a pendulum which correctly beats seconds at 20°C. The…

Problem

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

question

A clock is controlled by a pendulum which correctly beats seconds at 20°C. The pendulum is a light iron rod, of coefficient of linear expansion 16X10^-6 C deg^-1 , with a concentrated mass at one end. How many seconds does it lose in a week if the temper-ature is kept at 30°C?

category

physics

options

  1. 18 s
  2. 72 s
  3. 36 s
  4. 54.8 s
  5. 24.2 s
  6. 30 s
  7. 12.1 s
  8. 48.4 s
  9. 60 s
  10. 96 s

src

stemez-Physics

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Official source

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