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ѤҪԡ
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ʶԵ

: 4095183
й 84 ؤŷ ͹Ź
ѧҹѡǧ PDF
gravitational potential energy 

    
ѧҹѵ Դҡçǧе˹ (h) Ҥҡ EP = mgh
    㹡ҤҾѧҹѡǧ еͧ͡˹ҧԧ ҡ˹дѺҧԧ EP ٹ ѵط٧дѺҧԧ դҾѧҹѡǧ繺ǡ ҵӡдѺҧԧ դҾѧҹѡǧź

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