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What mechanical and electronic device has a name derived from a Czechoslovakian word meaning "work; compulsory service"?
Ans:
From a Czechoslovakian word meaning "work; compulsory service" a mechanical and electronic device is Robot.
A LADDER OF LENGTH 4m weighing 300N is placed against vertical wall . the coefficient of friction between the wall and the ladder is 0.3.The ladder in addition to its own weight ha
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