21. Kinetic Theory of Ideal Gases
Root-Mean-Square Velocity of Gases
4:56 minutes
Problem 18.69
Textbook Question
Textbook QuestionA space vehicle returning from the Moon enters the Earth’s atmosphere at a speed of about 42,000 km/h. Molecules (assume nitrogen) striking the nose of the vehicle with this speed correspond to what temperature? (Because of this high temperature, the nose of a space vehicle must be made of special materials; indeed, part of it does vaporize, and this is seen as a bright blaze upon reentry.)
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