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Physics, 22.06.2019 03:30, natu2072
Using a wheel and axle, a farmer is trying to lift a bucket of water from the bottom of a well. the larger wheel has a radius of 40 cm compared to the axle that has a radius of 10 cm. if a bucket of water is 50 n, then how much effort is required to raise it? 12.5 n 200 n 2 n 500 n
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What happens when the vapor pressure of a liquid is equal to the external pressure?
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Aplane's average speed between two cities is 600 km/h. if the trip takes 2.5 hours, how far does the plane fly?
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