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Question of the Day for 9/30/2026
 
Subject: Physics


At room temperature, the rms speed of nitrogen molecules is about 500 m/s. By what factor must the absolute temperature T of the Earth change for the rms speed of nitrogen to reach escape velocity, 11 km/s?
  1. T must decrease by a factor of 50.
  2. T must increase by a factor of 22.
  3. T must increase by a factor of 50.
  4. T must increase by a factor of 200.
  5. T must increase by a factor of 500.

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