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The quantity of charge 9 (in coulombs) that has passed through a surface of area 2.00 cm2 varies with time according to the equation q

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The quantity of charge 9 (in coulombs) that has passed through a surface of area 2.00 cm2 varies with time according to the equation q = 413 + 5! + 6, where t is in seconds. (a) What is the instantaneous current through the surface at t = 1.00 s? (b) What is the value of the current density

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