Question: A space vehicle returning from the Moon enters Earths atmosphere at a speed of about 40,000 km/h. Molecules (assume nitrogen) striking the nose of the

A space vehicle returning from the Moon enters Earth’s atmosphere at a speed of about 40,000 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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