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Physics, 19.01.2020 22:31 heavendl13
Ascrew jack who's pitch is 2mm ,is used to raise a block of 700kg through a height of 30cm. the length of a tommy bar of the jar is 50cm. if the jack is 70% effecient calculate: velocity ratio, mechanical advantage, effort required, and workdone by the effort
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Ascrew jack who's pitch is 2mm ,is used to raise a block of 700kg through a height of 30cm. the leng...
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