15-04-2017
Biology

contestada

Spacecraft must have shields to protect the from

Friction caused moving through the atmosphere

Heat builds up generated by solar power

Collision with other objects like comets

Respuesta :

Mud2018 Mud2018

15-04-2017

Friction because when reentering the atmosphere the friction builds up causing so much heat that the spacecraft would burn up without the heat shields.

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abelesparza2005 abelesparza2005

14-05-2020

Answer:

the answer is friction hope it helps

Explanation:

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