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  1. J

    Equivalent capaticnace, charge, voltage

    Homework Statement Find the equivalent capacitance of the circuit below. Also determine the charge of each capacitor and the potential difference across each capacitor. http://img18.imageshack.us/img18/2616/physicss.jpg [Broken] Homework Equations Q=VC Parallel Ceq = C1+C2+C3...
  2. J

    Rope pulling mass w/ friction

    Homework Statement A rope that is 30° to the horizontal has a tension of 150 N. It is used to pull a 40kg packing crate on a rough sruface through a distance of 6 m. If the crate moves at a constant speed, find the work done by friction. Homework Equations Energy formulas, not...
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