How many oxygen molecules does tank contain
A tank of compressed oxygen gas at a doctor's office has a pressure of 105 times atmospheric pressure. If the volume of the tank is 525 cm3, how many oxygen molecules does it contain? Answer in molecules.
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Determine the scalar potential due to a 1m-long horizontal line of charge with 10mC total charge. Use this result to evaluate the electric field at the centre of a square constructed from four of these lines of charge.
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