Why do people use block and teckle systems to move heavy objects?
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Chemistry, 18.10.2019 10:50 canyonrico05
Why do people use block and teckle systems to move heavy objects?
Answers: 1
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Which liquid (h2o, h2o + soap, or h2o + salt) has the strongest cohesion and adhesion? (need now plz)
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One similarity and one difference between an element and a mixture of elements
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