A space vehicle returning from the Moon enters the Earth’satmosphere at a speed of about 42000 km/h. Molecules(assume nitrogen) striking the nose of the vehicle with thisspeed correspond to what temperature? (Because of thishigh temperature, the nose of a space vehicle must be madeof special materials; indeed, part of it does vaporize, andthis is seen as a bright blaze upon reentry.)

Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter21: Heat And The First Law Of Thermodynamics
Section: Chapter Questions
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A space vehicle returning from the Moon enters the Earth’s
atmosphere at a speed of about 42000 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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