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Spacecraft returning from their voyage in outer space enter the earth’s atmosphere with great speed, which makes them burning hot. Which metal is used as a shield to withstand these high temperatures?
  • a)
    Iron
  • b)
    Titanium
  • c)
    Lead
  • d)
    Nickel
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Spacecraft returning from their voyage in outer space enter the earth&...
So let us consider those spacecraft which carry humans to ISS and back to earth. Right now our astronauts are using the Soyuz spacecraft for the two way journey .now while coming down the spacecraft is designed is a such a way that the bottom end of the capsule is always facing down where the heat shield is present. Also there trajectory is usually a ballistic reentry. . comming back to the point These heat shields are designed to be a bad conductor of heat.they are mainly composed of ceramic or composite tiles but on the point of maximum heat, the materials used are moinly reinforced carbon-carbon tiles.
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Spacecraft returning from their voyage in outer space enter the earth’s atmosphere with great speed, which makes them burning hot. Which metal is used as a shield to withstand these high temperatures?a)Ironb)Titaniumc)Leadd)NickelCorrect answer is option 'A'. Can you explain this answer?
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