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Three children, each of weight 356N, make a log raft bylashing together logs of diameter 0.30m and length 1.80m. How many logs will be needed to keep them afloat in fresh water? Take thedensity of the logs to be 800 kg/m^3.
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Question: A parallel-plate air capacitor has a capacitance of 920 pF. The charge on each plate is 2.55 ?C What is the potential difference between the plates? If the charge is kept constant, what will be the potential di ...
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