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範例:鏤空球體的重力場

有一星球(實心)半徑為r，表面的重力場強度為g，則(1)P點的重力場強度為若干? (2)若以O點為中心，挖去半徑為r/2的球體，則P點的重力場強度變為若干? (3)若以A點為中心，挖去半徑為r/2的內切球，則P點的重力場強度變為若干?

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Posted in 萬有引力定律.

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By admin – 2009 年 03 月 11 日

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