[问答题]
Astronauts who spend lon
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b preew. ()nfips/ +8ads in outer space could be adversely affected by weightlessness. One way to simulate gravity is to shape the spaceship like a cylindri
pre+e). /(nbf8ai pswcal shell that rotates, with the astronauts walking on the inside surface (Fig. 5–32). Explain how this simulates gravity. Consider (a) how objects fall, (b) the force we feel on our feet, and (c) any other aspects of gravity you can think of.
