Physics
Physics, 06.03.2021 19:00, cxxcee

the efficiency of a wheel and axle system is 80% and the ratio of radius of a wheel to radius of axle is 4:1 in order to lift a mass of 2lg the effort required is​

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the efficiency of a wheel and axle system is 80% and the ratio of radius of a wheel to radius of axl...

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