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    A simple physics electricity problem need help with?

    Equipotentials are lines along which A. the electric field is constant in magnitude and direction. B. the electric charge is constant in magnitude and direction. C. maximum work against electrical forces is required to move a charge at constant speed. D. a charge may be moved at constant speed...
  2. K

    discrete mathematics h.w help plz?

    really need help with this. find the domain and range of these functions. note that in each case to find the domain,determine the set of elements assigned value by the function. a). the function that assigns to each non-negative integer its last digit. b). the function that assigns the next...
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