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 Earlier this week it took me a little bit too long to realize that the reason my pen wasn't writing correctly was that it was actually a screwdriver. I'm going to have to ask for a few nights of honest sleep before signing off on a report. - EricVanWyk [more] |
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CIM Quiz 2
The following was inspired by a recent discussion I had about analyzing a vacuum ball magnet: The power required to drive a certain vacuum impeller is given by the equation Quote:
The motors are each being driven at 12 volts. Find the theoretical gear ratios of the two gearboxes which produce the fastest impeller speed. [edit 11:56am] Note: for purposes of this analysis, ignore gearbox losses. [/edit] [edit 4:54pm] Note: For this hypothetical problem, ignore the 40amp breaker and allow each motor to draw whatever current it needs (with 12V applied) in order to maximize the impeller speed. Pretend the impeller is only operated momentarily. [/edit] Last edited by Ether : 02-12-2010 at 16:55. |
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