Physics, 30.11.2021 03:10 brendonvernon8

It would take 46 jules to raise a 20 kg rock above your head to a total height of 2.3 m. How much work does it take, once lifted, to hold the rock, above your head for 36 minutes?

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It would take 46 jules to raise a 20 kg rock above your head to a total height of 2.3 m. How much...