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A freely (zero friction) rotating cylinder (mounted on a vertical axis) is placed on a model boat instead of a sail. The Magnus force that is created is used to power the boat. A fan is mounted on the boat to provide airflow over the cylinder. Will the required force be created to power the boat? The fan is now placed outside the boat and directed to provide airflow over the cylinger. Will the same Magnus force be created to power the boat? What would be the practical problems with such a vessel, if any?
an airplane is flying at 300 mih at 4000 m standard altitude. as is typical the air velocity relative to the upper
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in moles of an ideal gas a and 1-nmoles of an ideal gas b each at 1 atm are mixed at total constant pressure. what
determine the velocity of ship in sea water and also the resistance in sea water if density of air 1.3 kg/m and kinematic viscosity of sea water and air as 0.012 and 0.018 stokes respectively.
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