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Spend time observing or thinking about events that involve matter and energy. which events can you explain? which events can’t you explain?
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Calculate the amount of heat produced when 18000 coulombs of charge is transferred in one hour through a potential difference of 50v
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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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Physics, 22.06.2019 14:40
Glass has a hardness that is in the middle of the hardness scale. what is the hardness of glass?
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A 500-g mass is attached to the end of an initially unstretched vertical spring for which k=30 n/m....
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