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Is a screwdriver an example of a wheel&axle?
by Answerbag Staff on January 9th, 2011
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How heavy is a dam generator or turbine?
by Answerbag Staff on January 8th, 2011
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Do solutes change the melting point of ice?
by Answerbag Staff on January 7th, 2011
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What speed is car 1 traveling when it collides with car 2 in front of it, stopped. Car #1 recoils 9 feet. #1 is Acura and #2 is Tahoe.
by carcollision on April 25th, 2012
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which has more grip - a surface with a high coefficient of friction or a low coefficient of friction?
by AAUGH! on April 2nd, 2012
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You're reading If a self-aware android was powered by a hand-crank and it was capable of cranking itself, would this be perpetual energy? Would he therefore run perpetually off of his own energy source?
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It'd have to be 100% efficient, and frankly it wouldnt work
by H on December 28th, 2008