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設地球的質量為M,衛星的軌道半徑為r,衛星質量為m,由地球的萬有引力提供向心力得:GMm ;r2=mv2r=m4π2rT2=mω2r=maA、線速度v=GM ;r,離地面越高,r越大,v越小.故A錯誤;B、週期T=2πr3GM,r越大,T越大…
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