Relations between coordinates and unit vectors
Using the relations between coordinates and unit vectors in Cartesian and cylindrical coordinates, compute the velocity components in cylindrical coordinates for a general vector V = Vx i + Vy j + Vz k. Use your results to transform V = V j.
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If the oxygen is replaced by helium at the same temperature, how many kilograms of the latter will be needed to produce a gauge pressure of 7.50 atm?
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A gear train is to have a speed reduction of 600:1. The gears used can have no fewer than 12 teeth and no more than 96 teeth. How many teeth should be in each gear in the gear train?
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