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  5. 求解，理化4-1,光的傳播
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Junior High
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求解，理化4-1,光的傳播

1997年7月4日,美國的太空登陸小艇降落火星後不斷地傳送探測資料回資訊 站,已知探測資料以電磁波(速率與光相同)傳送,且訊息有著500 秒的延遲 試問火星與地球距離約幾萬公里? (A) 1.5 x 10 (B) 1.5 x 10° (C) 1.5 × 10 (D) 1.5 x 10- Ax " (x ()
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