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Physics, 23.12.2020 01:00 stodd9503

(need Ke=1/2mv2 & PE=mgh & g= 9.81 m/s2)


(need Ke=1/2mv2 & PE=mgh & g= 9.81 m/s2)

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(need Ke=1/2mv2 & PE=mgh & g= 9.81 m/s2)
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