Recent content by vroy

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    Automotive Calculation of the efficiency of an engine

    We know efficiency (η) = Woutput/Winput Now in any cycle, for instance, the Otto cycle, let the total work output be WO, total heat added be WH & the total work done on the gas to compress it be WC. Then, will efficiency be equal to (η) = (WO-WC)/WH ? Or will it be equal to (η) = WO/(WH+WC) ?
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    Classical mechanics: motion and acceleration

    Thank you very much @kuruman and @Orodruin :bow: I can now progress with solving it :smile: now I can mark it solved!
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    Classical mechanics: motion and acceleration

    But choosing the axes, like i have done here, is showing that the vertical force F is indeed giving a horizontal component. And i haven't yet spotted the mistake. Please help me solve this.
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    Classical mechanics: motion and acceleration

    Homework Statement Referring to the attached diagram, the object ABCD is kept in an isolated system where it is under no external influence of any kind. A· An instantaneous force F acts along the edge BC of the block ABCD, where M is its mass, with its center of mass located at O...
  5. V

    Good book on electrical machines

    thank u :)
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    Good book on electrical machines

    hello, i am an undergraduate student pursuing engineering. kindly suggest me a good book on electrical machines (induction motors, dc motors ,etc) so that they can be understood very easily . please suggest as fast as possible :cool: